Package ora

import (
	"database/sql"

	_ "gopkg.in/rana/ora.v4"
)

func main() {
	db, err := sql.Open("ora", "user/passw@host:port/sid")
	defer db.Close()

	// Set timeout (Go 1.8)
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	// Set prefetch count (Go 1.8)
	ctx = ora.WithStmtCfg(ctx, ora.Cfg().StmtCfg.SetPrefetchCount(50000))
	rows, err := db.QueryContext(ctx, "SELECT * FROM user_objects")
	defer rows.Close()
}

import (
	"gopkg.in/rana/ora.v4"
)

func main() {
	env, srv, ses, err := ora.NewEnvSrvSes("user/passw@host:port/sid")
	if err != nil {
		log.Fatal(err)
	}
	defer env.Close()
	defer srv.Close()
	defer ses.Close()

	var user string
	if _, err = ses.PrepAndExe("BEGIN :1 := SYS_CONTEXT('USERENV', :2); END;", &res, "SESSION_USER"); err != nil {
		log.Fatal(err)
	}
	log.Printf("user: %q", user)
}

cp -aL contrib/oci8.pc /usr/local/lib/pkgconfig/oci8.pc

go get gopkg.in/rana/ora.v4

// example Oracle placeholder uses a colon
INSERT INTO T1 (C1) VALUES (:C1)

Go type		Oracle type

int64		NUMBER°, BINARY_DOUBLE, BINARY_FLOAT, FLOAT

float64		NUMBER¹, BINARY_DOUBLE, BINARY_FLOAT, FLOAT

time.Time	TIMESTAMP, TIMESTAMP WITH TIME ZONE, TIMESTAMP WITH LOCAL TIME ZONE, DATE

string		CHAR², NCHAR, VARCHAR, VARCHAR2, NVARCHAR2, LONG, CLOB, NCLOB

bool		CHAR(1 BYTE)³, CHAR(1 CHAR)³

[]byte		BLOB, LONG RAW, RAW

° A select-list column defined as an Oracle NUMBER with zero scale e.g.,
NUMBER(10,0) is returned as an int64. Either int64 or float64 may be inserted
into a NUMBER column with zero scale. float64 insertion will have its fractional
part truncated.

¹ A select-list column defined as an Oracle NUMBER with a scale greater than
zero e.g., NUMBER(10,4) is returned as a float64. Either int64 or float64 may
be inserted into a NUMBER column with a scale greater than zero.

² A select-list column defined as an Oracle CHAR with a length greater than 1
e.g., CHAR(2 BYTE) or CHAR(2 CHAR) is returned as a string. A Go string of any
length up to the column max length may be inserted into the CHAR column.

³ The Go bool value false is mapped to the zero rune '0'. The Go bool value
true is mapped to the one rune '1'.

    func init() {
		drvCfg := ora.Cfg()
		drvCfg.FalseRune = 'N'
		drvCfg.TrueRune = 'Y'
		drvCfg.TrueRune = 'Y'
		ora.SetCfg(drvCfg)
	}

Go type				Oracle type

int64, int32, int16, int8	NUMBER°, BINARY_DOUBLE, BINARY_FLOAT, FLOAT
uint64, uint32, uint16, uint8
Int64, Int32, Int16, Int8
Uint64, Uint32, Uint16, Uint8
*int64, *int32, *int16, *int8
*uint64, *uint32, *uint16, *uint8
[]int64, []int32, []int16, []int8
[]uint64, []uint32, []uint16, []uint8
[]Int64, []Int32, []Int16, []Int8
[]Uint64, []Uint32, []Uint16, []Uint8

float64, float32		NUMBER¹, BINARY_DOUBLE, BINARY_FLOAT, FLOAT
Float64, Float32
*float64, *float32
[]float64, []float32
[]Float64, []Float32

time.Time			TIMESTAMP, TIMESTAMP WITH TIME ZONE,
Time				TIMESTAMP WITH LOCAL TIME ZONE, DATE
*time.Time
[]time.Time
[]Time

string				CHAR², NCHAR, VARCHAR, VARCHAR2,
String				NVARCHAR2, LONG, CLOB, NCLOB, ROWID
*string
[]string
[]String

bool				CHAR(1 BYTE)³, CHAR(1 CHAR)³
Bool
*bool
[]bool
[]Bool

[]byte, [][]byte	BLOB

Lob, []Lob, *Lob	BLOB, CLOB

Raw, []Raw			RAW, LONG RAW

IntervalYM			INTERVAL MONTH TO YEAR
[]IntervalYM

IntervalDS			INTERVAL DAY TO SECOND
[]IntervalDS

Bfile				BFILE

° A select-list column defined as an Oracle NUMBER with zero scale e.g.,
NUMBER(10,0) is returned as an int64 by default. Integer and floating point
numerics may be inserted into a NUMBER column with zero scale. Inserting a
floating point numeric will have its fractional part truncated.

¹ A select-list column defined as an Oracle NUMBER with a scale greater than
zero e.g., NUMBER(10,4) is returned as a float64 by default. Integer and
floating point numerics may be inserted into a NUMBER column with a scale
greater than zero.

² A select-list column defined as an Oracle CHAR with a length greater than 1
e.g., CHAR(2 BYTE) or CHAR(2 CHAR) is returned as a string. A Go string of any
length up to the column max length may be inserted into the CHAR column.

³ The Go bool value false is mapped to the zero rune '0'. The Go bool value
true is mapped to the one rune '1'.

package main

import (
	"fmt"
	"gopkg.in/rana/ora.v4"
)

func main() {
	// example usage of the ora package driver
	// connect to a server and open a session
	env, err := ora.OpenEnv()
	defer env.Close()
	if err != nil {
		panic(err)
	}
	srvCfg := ora.SrvCfg{Dblink: "orcl"}
	srv, err := env.OpenSrv(&srvCfg)
	defer srv.Close()
	if err != nil {
		panic(err)
	}
	sesCfg := ora.SesCfg{
		Username: "test",
		Password: "test",
	}
	ses, err := srv.OpenSes(sesCfg)
	defer ses.Close()
	if err != nil {
		panic(err)
	}

	// create table
	tableName := "t1"
	stmtTbl, err := ses.Prep(fmt.Sprintf("CREATE TABLE %v "+
		"(C1 NUMBER(19,0) GENERATED ALWAYS AS IDENTITY "+
		"(START WITH 1 INCREMENT BY 1), C2 VARCHAR2(48 CHAR))", tableName))
	defer stmtTbl.Close()
	if err != nil {
		panic(err)
	}
	rowsAffected, err := stmtTbl.Exe()
	if err != nil {
		panic(err)
	}
	fmt.Println(rowsAffected)

	// begin first transaction
	tx1, err := ses.StartTx()
	if err != nil {
		panic(err)
	}

	// insert record
	var id uint64
	str := "Go is expressive, concise, clean, and efficient."
	stmtIns, err := ses.Prep(fmt.Sprintf(
		"INSERT INTO %v (C2) VALUES (:C2) RETURNING C1 INTO :C1", tableName))
	defer stmtIns.Close()
	rowsAffected, err = stmtIns.Exe(str, &id)
	if err != nil {
		panic(err)
	}
	fmt.Println(rowsAffected)

	// insert nullable String slice
	a := make([]ora.String, 4)
	a[0] = ora.String{Value: "Its concurrency mechanisms make it easy to"}
	a[1] = ora.String{IsNull: true}
	a[2] = ora.String{Value: "It's a fast, statically typed, compiled"}
	a[3] = ora.String{Value: "One of Go's key design goals is code"}
	stmtSliceIns, err := ses.Prep(fmt.Sprintf(
		"INSERT INTO %v (C2) VALUES (:C2)", tableName))
	defer stmtSliceIns.Close()
	if err != nil {
		panic(err)
	}
	rowsAffected, err = stmtSliceIns.Exe(a)
	if err != nil {
		panic(err)
	}
	fmt.Println(rowsAffected)

	// fetch records
	stmtQry, err := ses.Prep(fmt.Sprintf(
		"SELECT C1, C2 FROM %v", tableName))
	defer stmtQry.Close()
	if err != nil {
		panic(err)
	}
	rset, err := stmtQry.Qry()
	if err != nil {
		panic(err)
	}
	for rset.Next() {
		fmt.Println(rset.Row[0], rset.Row[1])
	}
	if err := rset.Err(); err != nil {
		panic(err)
	}

	// commit first transaction
	err = tx1.Commit()
	if err != nil {
		panic(err)
	}

	// begin second transaction
	tx2, err := ses.StartTx()
	if err != nil {
		panic(err)
	}
	// insert null String
	nullableStr := ora.String{IsNull: true}
	stmtTrans, err := ses.Prep(fmt.Sprintf(
		"INSERT INTO %v (C2) VALUES (:C2)", tableName))
	defer stmtTrans.Close()
	if err != nil {
		panic(err)
	}
	rowsAffected, err = stmtTrans.Exe(nullableStr)
	if err != nil {
		panic(err)
	}
	fmt.Println(rowsAffected)
	// rollback second transaction
	err = tx2.Rollback()
	if err != nil {
		panic(err)
	}

	// fetch and specify return type
	stmtCount, err := ses.Prep(fmt.Sprintf(
		"SELECT COUNT(C1) FROM %v WHERE C2 IS NULL", tableName), ora.U8)
	defer stmtCount.Close()
	if err != nil {
		panic(err)
	}
	rset, err = stmtCount.Qry()
	if err != nil {
		panic(err)
	}
	row := rset.NextRow()
	if row != nil {
		fmt.Println(row[0])
	}
	if err := rset.Err(); err != nil {
		panic(err)
	}

	// create stored procedure with sys_refcursor
	stmtProcCreate, err := ses.Prep(fmt.Sprintf(
		"CREATE OR REPLACE PROCEDURE PROC1(P1 OUT SYS_REFCURSOR) AS BEGIN "+
			"OPEN P1 FOR SELECT C1, C2 FROM %v WHERE C1 > 2 ORDER BY C1; "+
			"END PROC1;",
		tableName))
	defer stmtProcCreate.Close()
	rowsAffected, err = stmtProcCreate.Exe()
	if err != nil {
		panic(err)
	}

	// call stored procedure
	// pass *Rset to Exe to receive the results of a sys_refcursor
	stmtProcCall, err := ses.Prep("CALL PROC1(:1)")
	defer stmtProcCall.Close()
	if err != nil {
		panic(err)
	}
	procRset := &ora.Rset{}
	rowsAffected, err = stmtProcCall.Exe(procRset)
	if err != nil {
		panic(err)
	}
	if procRset.IsOpen() {
		for procRset.Next() {
			fmt.Println(procRset.Row[0], procRset.Row[1])
		}
		if err := procRset.Err(); err != nil {
			panic(err)
		}
		fmt.Println(procRset.Len())
	}

	// Output:
	// 0
	// 1
	// 4
	// 1 Go is expressive, concise, clean, and efficient.
	// 2 Its concurrency mechanisms make it easy to
	// 3
	// 4 It's a fast, statically typed, compiled
	// 5 One of Go's key design goals is code
	// 1
	// 1
	// 3
	// 4 It's a fast, statically typed, compiled
	// 5 One of Go's key design goals is code
	// 3
}

// given:
// CREATE TABLE T1 (
// C1 NUMBER(19,0) GENERATED ALWAYS AS IDENTITY (START WITH 1 INCREMENT BY 1),
// C2 VARCHAR2(48 CHAR))
var id int64
stmt, err = ses.Prep("INSERT INTO T1 (C2) VALUES ('GO') RETURNING C1 INTO :C1")
stmt.Exe(&id)

// given:
// CREATE OR REPLACE PROCEDURE PROC1 (P1 OUT VARCHAR2) AS BEGIN P1 := 'GO'; END PROC1;
var str string
stmt, err = ses.Prep("CALL PROC1(:1)")
stmt.Exe(&str)

// insert one million rows with single insert statement
// given: CREATE TABLE T1 (C1 NUMBER)
values := make([]int64, 1000000)
for n, _ := range values {
	values[n] = int64(n)
}
rowsAffected, err := ses.PrepAndExe("INSERT INTO T1 (C1) VALUES (:C1)", values)

// insert String slice
// given: CREATE TABLE T1 (C1 VARCHAR2(48 CHAR))
a := make([]ora.String, 5)
a[0] = ora.String{Value: "Go is expressive, concise, clean, and efficient."}
a[1] = ora.String{Value: "Its concurrency mechanisms make it easy to"}
a[2] = ora.String{IsNull: true}
a[3] = ora.String{Value: "It's a fast, statically typed, compiled"}
a[4] = ora.String{Value: "One of Go's key design goals is code"}
stmt, err = ses.Prep("INSERT INTO T1 (C1) VALUES (:C1)")
stmt.Exe(a)

// Specify OraS to Prep method to return ora.String values
// fetch records
stmt, err = ses.Prep("SELECT C1 FROM T1", OraS)
rset, err := stmt.Qry()
for rset.Next() {
	fmt.Println(rset.Row[0])
}

// given: create table t1 (c1 number)
stmt, err = ses.Prep("SELECT C1, C1 FROM T1", ora.I64, ora.OraI64)
rset, err := stmt.Qry()
for rset.Next() {
	fmt.Println(rset.Row[0], rset.Row[1])
}

// insert uint16
// given: create table t1 (c1 number)
value := uint16(9)
stmt, err = ses.Prep("INSERT INTO T1 (C1) VALUES (:C1)")
stmt.Exe(value)

// select numerics of various sizes from the same column
stmt, err = ses.Prep(
	"SELECT C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, FROM T1",
	ora.I64, ora.I32, ora.I16, ora.I8, ora.U64, ora.U32, ora.U16, ora.U8,
	ora.F64, ora.F32)
rset, err := stmt.Qry()
row := rset.NextRow()

Go type		GoColumnType

int64		I64

int32		I32

int16		I16

int8		I8

uint64		U64

uint32		U32

uint16		U16

uint8		U8

float64		F64

Int64		OraI64

Int32		OraI32

Int16		OraI16

Int8		OraI8

Uint64		OraU64

Uint32		OraU32

Uint16		OraU16

Uint8		OraU8

Float64		OraF64

Float32		OraF32

time.Time	T

Time		OraT

string		S

String		OraS

bool		B

Bool		OraB

[]byte		Bin

Raw			Bin

Lob°		Bin or S

default¹	D

° Lob will return binary data if the Oracle column is a BLOB; otherwise, Lob
  will return a string if the Oracle column is a CLOB.

¹ D represents a default mapping between a select-list column and a Go type.
The default mapping is defined in RsetCfg.

// StmtCfg cascades to descendent structs
// EnvCfg -> SrvCfg -> SesCfg -> StmtCfg -> RsetCfg

sc := &ora.SrvCfg{Dblink: "orcl"}
sc.Dblink = "orcl"
cfg := NewStmtCfg().
	SetNumberInt(ora.OraI64).
	SetNumberFloat(ora.OraF64).
	SetBinaryDouble(ora.OraF64).
	SetBinaryFloat(ora.OraF64).
	SetFloat(ora.OraF64).
	SetDate(ora.OraT).
	SetTimestamp(ora.OraT).
	SetTimestampTz(ora.OraT).
	SetTimestampLtz(ora.OraT).
	SetChar1(ora.OraS).
	SetVarchar(ora.OraS).
	SetLong(ora.OraS).
	SetClob(ora.OraS).
	SetBlob(ora.OraBin).
	SetRaw(ora.OraBin).
	SetLongRaw(ora.OraBin)
sc.StmtCfg = cfg
srv, err := env.OpenSrv(sc)
// any new SesCfg.StmtCfg, StmtCfg.Cfg will receive this StmtCfg
// any new Rset will receive the StmtCfg.Rset configuration

// update StmtCfg to change the FalseRune and TrueRune inserted into the database
// given: CREATE TABLE T1 (C1 CHAR(1 BYTE))

stmt.Cfg().Char1(ora.OraB)

// insert 'false' record
var falseValue bool = false
stmt, err = ses.Prep("INSERT INTO T1 (C1) VALUES (:C1)")
stmt.Cfg().FalseRune = 'N'
stmt.Exe(falseValue)

// insert 'true' record
var trueValue bool = true
stmt, err = ses.Prep("INSERT INTO T1 (C1) VALUES (:C1)")
stmt.Cfg().TrueRune = 'Y'
stmt.Exe(trueValue)

// update RsetCfg to change the TrueRune
// used to translate an Oracle char to a Go bool
// fetch inserted records
stmt, err = ses.Prep("SELECT C1 FROM T1")
stmt.Cfg().Rset.TrueRune = 'Y'
rset, err := stmt.Qry()
for rset.Next() {
	fmt.Println(rset.Row[0])
}

// given: CREATE TABLE T1 (C1 NUMBER, C2, CHAR(1 BYTE), C3 VARCHAR2(48 CHAR))
stmt, err = ses.Prep("SELECT C1, C2, C3 FROM T1")
rset, err := stmt.Qry()
for rset.Next() {
	fmt.Println(rset.Index, rset.Row[0], rset.Row[1], rset.Row[2])
}

// given:
// CREATE TABLE T1 (C1 NUMBER, C2 VARCHAR2(48 CHAR))
// CREATE OR REPLACE PROCEDURE PROC1(P1 OUT SYS_REFCURSOR) AS
// BEGIN OPEN P1 FOR SELECT C1, C2 FROM T1 ORDER BY C1; END PROC1;
stmt, err = ses.Prep("CALL PROC1(:1)")
rset := &ora.Rset{}
stmt.Exe(rset)
if rset.IsOpen() {
	for rset.Next() {
		fmt.Println(rset.Row[0], rset.Row[1])
	}
}

// given:
// CREATE TABLE T1 (C1 NUMBER, C2 VARCHAR2(48 CHAR))
// CREATE OR REPLACE PROCEDURE PROC1(P1 OUT SYS_REFCURSOR, P2 OUT SYS_REFCURSOR) AS
// BEGIN OPEN P1 FOR SELECT C1 FROM T1 ORDER BY C1; OPEN P2 FOR SELECT C2 FROM T1 ORDER BY C2;
// END PROC1;
stmt, err = ses.Prep("CALL PROC1(:1, :2)")
rset1 := &ora.Rset{}
rset2 := &ora.Rset{}
stmt.Exe(rset1, rset2)
// read from first cursor
if rset1.IsOpen() {
	for rset1.Next() {
		fmt.Println(rset1.Row[0])
	}
}
// read from second cursor
if rset2.IsOpen() {
	for rset2.Next() {
		fmt.Println(rset2.Row[0])
	}
}

// insert IntervalYM slice
// given: CREATE TABLE T1 (C1 INTERVAL YEAR TO MONTH)
a := make([]ora.IntervalYM, 5)
a[0] = ora.IntervalYM{Year: 1, Month: 1}
a[1] = ora.IntervalYM{Year: 99, Month: 9}
a[2] = ora.IntervalYM{IsNull: true}
a[3] = ora.IntervalYM{Year: -1, Month: -1}
a[4] = ora.IntervalYM{Year: -99, Month: -9}
stmt, err = ses.Prep("INSERT INTO T1 (C1) VALUES (:C1)")
stmt.Exe(a)

// query IntervalYM
stmt, err = ses.Prep("SELECT C1 FROM T1")
rset, err := stmt.Qry()
for rset.Next() {
	fmt.Println(rset.Row[0])
}

// insert IntervalDS slice
// given: CREATE TABLE T1 (C1 INTERVAL DAY TO SECOND)
a := make([]ora.IntervalDS, 5)
a[0] = ora.IntervalDS{Day: 1, Hour: 1, Minute: 1, Second: 1, Nanosecond: 123456789}
a[1] = ora.IntervalDS{Day: 59, Hour: 59, Minute: 59, Second: 59, Nanosecond: 123456789}
a[2] = ora.IntervalDS{IsNull: true}
a[3] = ora.IntervalDS{Day: -1, Hour: -1, Minute: -1, Second: -1, Nanosecond: -123456789}
a[4] = ora.IntervalDS{Day: -59, Hour: -59, Minute: -59, Second: -59, Nanosecond: -123456789}
stmt, err = ses.Prep("INSERT INTO T1 (C1) VALUES (:C1)")
stmt.Exe(a)

// query IntervalDS
stmt, err = ses.Prep("SELECT C1 FROM T1")
rset, err := stmt.Qry()
for rset.Next() {
	fmt.Println(rset.Row[0])
}

// given: CREATE TABLE T1 (C1 NUMBER)

// rollback
tx, err := ses.StartTx()
stmt, err = ses.Prep("INSERT INTO T1 (C1) VALUES (3)")
stmt.Exe()
stmt, err = ses.Prep("INSERT INTO T1 (C1) VALUES (5)")
stmt.Exe()
tx.Rollback()

// commit
tx, err = ses.StartTx()
stmt, err = ses.Prep("INSERT INTO T1 (C1) VALUES (7)")
stmt.Exe()
stmt, err = ses.Prep("INSERT INTO T1 (C1) VALUES (9)")
stmt.Exe()
tx.Commit()

// fetch records
stmt, err = ses.Prep("SELECT C1 FROM T1")
rset, err := stmt.Qry()
for rset.Next() {
	fmt.Println(rset.Row[0])
}

rowsAffected, err := ses.PrepAndExe("CREATE TABLE T1 (C1 NUMBER)")

rset, err := ses.PrepAndQry("SELECT CURRENT_TIMESTAMP FROM DUAL")

err = ses.Ins("T1",
	"C2", e.C2,
	"C3", e.C3,
	"C4", e.C4,
	"C5", e.C5,
	"C6", e.C6,
	"C7", e.C7,
	"C8", e.C8,
	"C9", e.C9,
	"C10", e.C10,
	"C11", e.C11,
	"C12", e.C12,
	"C13", e.C13,
	"C14", e.C14,
	"C15", e.C15,
	"C16", e.C16,
	"C17", e.C17,
	"C18", e.C18,
	"C19", e.C19,
	"C20", e.C20,
	"C21", e.C21,
	"C1", &e.C1)

err = ses.Upd("T1",
	"C2", e.C2*2,
	"C3", e.C3*2,
	"C4", e.C4*2,
	"C5", e.C5*2,
	"C6", e.C6*2,
	"C7", e.C7*2,
	"C8", e.C8*2,
	"C9", e.C9*2,
	"C10", e.C10*2,
	"C11", e.C11*2,
	"C12", e.C12*2,
	"C13", e.C13*2,
	"C14", e.C14*2,
	"C15", e.C15*2,
	"C16", e.C16*2,
	"C17", e.C17*2,
	"C18", e.C18*2,
	"C19", e.C19*2,
	"C20", e.C20*2,
	"C21", e.C21*2,
	"C1", e.C1)

rset, err := ses.Sel("T1",
	"C1", ora.U64,
	"C2", ora.F64,
	"C3", ora.I8,
	"C4", ora.I16,
	"C5", ora.I32,
	"C6", ora.I64,
	"C7", ora.U8,
	"C8", ora.U16,
	"C9", ora.U32,
	"C10", ora.U64,
	"C11", ora.F32,
	"C12", ora.F64,
	"C13", ora.I8,
	"C14", ora.I16,
	"C15", ora.I32,
	"C16", ora.I64,
	"C17", ora.U8,
	"C18", ora.U16,
	"C19", ora.U32,
	"C20", ora.U64,
	"C21", ora.F32)

// open a session before calling Ping
ses, _ := srv.OpenSes("username", "password")
err := ses.Ping()
if err == nil {
	fmt.Println("Ping successful")
}

// open a session before calling Version
ses, err := srv.OpenSes("username", "password")
version, err := srv.Version()
if version != "" && err == nil {
	fmt.Println("Received version from server")
}

// enable logging of the Rset.Next method
ora.Cfg().Log.Rset.Next = true

import (
	"gopkg.in/rana/ora.v4"
	"gopkg.in/rana/ora.v4/lg"
)

func main() {
	// use an optional log package for ora logging
	ora.Cfg().Log.Logger = lg.Log
}

ORA I 2015/05/23 16:54:44.615462 drv.go:411: OpenEnv 1
ORA I 2015/05/23 16:54:44.626443 drv.go:411: OpenEnv 2
ORA I 2015/05/23 16:54:44.627465 env.go:115: E2] OpenSrv (dbname orcl)
ORA I 2015/05/23 16:54:44.643449 env.go:150: E2] OpenSrv (srvId 1)
ORA I 2015/05/23 16:54:44.643449 srv.go:113: E2S1] OpenSes (username test)
ORA I 2015/05/23 16:54:44.665451 ses.go:163: E2S1S1] Prep: SELECT CURRENT_TIMESTAMP FROM DUAL
ORA I 2015/05/23 16:54:44.666451 rset.go:205: E2S1S1S1R0] open
ORA I 2015/05/23 16:54:44.666451 ses.go:74: E2S1S1] Close
ORA I 2015/05/23 16:54:44.666451 stmt.go:78: E2S1S1S1] Close
ORA I 2015/05/23 16:54:44.666451 rset.go:57: E2S1S1S1R0] close
ORA I 2015/05/23 16:54:44.666451 srv.go:63: E2S1] Close
ORA I 2015/05/23 16:54:44.667451 env.go:68: E2] Close

import (
	"flag"
	"gopkg.in/rana/ora.v4"
	"gopkg.in/rana/ora.v4/glg"
)

func main() {

	// parse flags for glog (required)
	// consider specifying cmd line arg -alsologtostderr=true
	flag.Parse()

	// use the optional glog package for ora logging
	cfg := ora.Cfg()
	cfg.Log.Logger = glg.Log
	ora.SetCfg(cfg)
}

I0523 17:31:41.702365   97708 drv.go:411] OpenEnv 1
I0523 17:31:41.728377   97708 drv.go:411] OpenEnv 2
I0523 17:31:41.728377   97708 env.go:115] E2] OpenSrv (dbname orcl)
I0523 17:31:41.741390   97708 env.go:150] E2] OpenSrv (srvId 1)
I0523 17:31:41.741390   97708 srv.go:113] E2S1] OpenSes (username test)
I0523 17:31:41.762366   97708 ses.go:163] E2S1S1] Prep: SELECT CURRENT_TIMESTAMP FROM DUAL
I0523 17:31:41.762366   97708 rset.go:205] E2S1S1S1R0] open
I0523 17:31:41.762366   97708 ses.go:74] E2S1S1] Close
I0523 17:31:41.762366   97708 stmt.go:78] E2S1S1S1] Close
I0523 17:31:41.762366   97708 rset.go:57] E2S1S1S1R0] close
I0523 17:31:41.763365   97708 srv.go:63] E2S1] Close
I0523 17:31:41.763365   97708 env.go:68] E2] Close

import (
	"gopkg.in/rana/ora.v4"
	"gopkg.in/rana/ora.v4/lg15"
)
func main() {
	// use the optional log15 package for ora logging
	cfg := ora.Cfg()
	cfg.Log.Logger = lg15.Log
	ora.SetCfg(cfg)
}

t=2015-05-23T17:08:32-0700 lvl=info msg="OpenEnv 1" lib=ora
t=2015-05-23T17:08:32-0700 lvl=info msg="OpenEnv 2" lib=ora
t=2015-05-23T17:08:32-0700 lvl=info msg="E2] OpenSrv (dbname orcl)" lib=ora
t=2015-05-23T17:08:32-0700 lvl=info msg="E2] OpenSrv (srvId 1)" lib=ora
t=2015-05-23T17:08:32-0700 lvl=info msg="E2S1] OpenSes (username test)" lib=ora
t=2015-05-23T17:08:32-0700 lvl=info msg="E2S1S1] Prep: SELECT CURRENT_TIMESTAMP FROM DUAL" lib=ora
t=2015-05-23T17:08:32-0700 lvl=info msg="E2S1S1S1R0] open" lib=ora
t=2015-05-23T17:08:32-0700 lvl=info msg="E2S1S1] Close" lib=ora
t=2015-05-23T17:08:32-0700 lvl=info msg="E2S1S1S1] Close" lib=ora
t=2015-05-23T17:08:32-0700 lvl=info msg="E2S1S1S1R0] close" lib=ora
t=2015-05-23T17:08:32-0700 lvl=info msg="E2S1] Close" lib=ora
t=2015-05-23T17:08:32-0700 lvl=info msg="E2] Close" lib=ora

// 1. login to an Oracle server with SqlPlus as sysdba:
SQLPLUS / AS SYSDBA

// 2. create a file for the test database use
CREATE TABLESPACE test_ts NOLOGGING DATAFILE 'test.dat' SIZE 100M AUTOEXTEND ON;

// 3. create a test database
CREATE USER test IDENTIFIED BY test DEFAULT TABLESPACE test_ts;

// 4. grant permissions to the database
GRANT CREATE SESSION, CREATE TABLE, CREATE SEQUENCE,
CREATE PROCEDURE, UNLIMITED TABLESPACE TO test;

// 5. increase the number allowable open cursors
ALTER SYSTEM SET OPEN_CURSORS = 400 SCOPE=BOTH;

// 6. create OS environment variables
// specify your_database_name; varies based on installation; may be 'orcl'
GO_ORA_DRV_TEST_DB = your_database_name
GO_ORA_DRV_TEST_USERNAME = test
GO_ORA_DRV_TEST_PASSWORD = test

// 1. login to an Oracle server with SqlPlus as sysdba:
SQLPLUS / AS SYSDBA

// 2. create a test pluggable database and permissions
// you will need to change the FILE_NAME_CONVERT file paths for your database installation
CREATE PLUGGABLE DATABASE go_driver_test
ADMIN USER test IDENTIFIED BY test
ROLES = (DBA)
FILE_NAME_CONVERT = ('d:\oracle\data\orcl\pdbseed\', 'd:\oracle\data\go_driver_test\');

// 3. modify the pluggable database settings
ALTER PLUGGABLE DATABASE go_driver_test OPEN;
ALTER SESSION SET CONTAINER = go_driver_test;
GRANT DBA TO test;

// 4. add new database service to the tnsnames.ora file:
// located on your client machine in $ORACLE_HOME\network\admin\tnsnames.ora
GO_DRIVER_TEST =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = go_driver_test)
    )
  )

// 5. create OS environment variables
GO_ORA_DRIVER_TEST_DB = go_driver_test
GO_ORA_DRIVER_TEST_USERNAME = test
GO_ORA_DRIVER_TEST_PASSWORD = test

// delete all tables in a non-container database
BEGIN
FOR c IN (SELECT table_name FROM user_tables) LOOP
EXECUTE IMMEDIATE ('DROP TABLE "' || c.table_name || '" CASCADE CONSTRAINTS');
END LOOP;
END;

// delete the non-container test database; use SqlPlus as sysdba
DROP USER test CASCADE;

// example usage of the ora package driver
// connect to a server and open a session
env, _ := ora.OpenEnv()
defer env.Close()
srv, err := env.OpenSrv(testSrvCfg)
defer srv.Close()
if err != nil {
    panic(err)
}
ses, err := srv.OpenSes(testSesCfg)
if err != nil {
    panic(err)
}
defer ses.Close()

// create table
tableName := "t1"
ses.PrepAndExe("DROP TABLE " + tableName)
qry := "CREATE TABLE " + tableName + "(C1 NUMBER(19,0)"
ver, _ := srv.Version()
var autoC1 int
if strings.Contains(ver, " 12.") {
    qry += " GENERATED ALWAYS AS IDENTITY (START WITH 1 INCREMENT BY 1)"
} else {
    autoC1 = 1
}
qry += ", C2 VARCHAR2(48 CHAR))"
stmtTbl, err := ses.Prep(qry)
if err != nil {
    panic(err)
}
defer stmtTbl.Close()
rowsAffected, err := stmtTbl.Exe()
if err != nil {
    panic(err)
}
fmt.Println(rowsAffected)

// begin first transaction
tx1, err := ses.StartTx()
if err != nil {
    panic(err)
}

// insert record
var id uint64
str := "Go is expressive, concise, clean, and efficient."
qry = "(C2) VALUES (:C2)"
if autoC1 > 0 {
    qry = fmt.Sprintf("(C1,C2) VALUES (%d,:C2)", autoC1)
    autoC1++
}
stmtIns, err := ses.Prep(fmt.Sprintf(
    "INSERT INTO %v "+qry+" RETURNING C1 INTO :C1", tableName))
defer stmtIns.Close()
rowsAffected, err = stmtIns.Exe(str, &id)
if err != nil {
    panic(err)
}
fmt.Println(rowsAffected)

// insert nullable ora.String slice
a := make([]ora.String, 4)
a[0] = ora.String{Value: "Its concurrency mechanisms make it easy to"}
a[1] = ora.String{IsNull: true}
a[2] = ora.String{Value: "It's a fast, statically typed, compiled"}
a[3] = ora.String{Value: "One of Go's key design goals is code"}
if autoC1 > 0 {
    qry = "(C1,C2) VALUES (:C1,:C2)"
}
stmtSliceIns, err := ses.Prep(fmt.Sprintf(
    "INSERT INTO %v "+qry, tableName))
defer stmtSliceIns.Close()
if err != nil {
    panic(err)
}
if autoC1 == 0 {
    rowsAffected, err = stmtSliceIns.Exe(a)
} else {
    b := make([]ora.Int32, len(a))
    for i := range b {
        b[i] = ora.Int32{Value: int32(autoC1)}
        autoC1++
    }
    rowsAffected, err = stmtSliceIns.Exe(b, a)
}
if err != nil {
    panic(err)
}
fmt.Println(rowsAffected)

// fetch records
stmtQry, err := ses.Prep(fmt.Sprintf(
    "SELECT C1, C2 FROM %v", tableName))
defer stmtQry.Close()
if err != nil {
    panic(err)
}
rset, err := stmtQry.Qry()
if err != nil {
    panic(err)
}
for rset.Next() {
    fmt.Println(rset.Row[0], emptyString(rset.Row[1].(string)))
}
if rset.Err() != nil {
    panic(rset.Err())
}

// commit first transaction
err = tx1.Commit()
if err != nil {
    panic(err)
}

// begin second transaction
tx2, err := ses.StartTx()
if err != nil {
    panic(err)
}
// insert null ora.String
nullableStr := ora.String{IsNull: true}
stmtTrans, err := ses.Prep(fmt.Sprintf(
    "INSERT INTO %v (C2) VALUES (:C2)", tableName))
if err != nil {
    panic(err)
}
defer stmtTrans.Close()
rowsAffected, err = stmtTrans.Exe(nullableStr)
if err != nil {
    panic(err)
}
fmt.Println(rowsAffected)
// rollback second transaction
err = tx2.Rollback()
if err != nil {
    panic(err)
}

// fetch and specify return type
stmtCount, err := ses.Prep(fmt.Sprintf(
    "SELECT COUNT(C1) FROM %v WHERE C2 IS NULL", tableName), ora.U8)
defer stmtCount.Close()
if err != nil {
    panic(err)
}
rset, err = stmtCount.Qry()
if err != nil {
    panic(err)
}
row := rset.NextRow()
if row != nil {
    fmt.Println(row[0])
}
if rset.Err() != nil {
    panic(rset.Err())
}

// create stored procedure with sys_refcursor
stmtProcCreate, err := ses.Prep(fmt.Sprintf(
    "CREATE OR REPLACE PROCEDURE PROC1(P1 OUT SYS_REFCURSOR) AS BEGIN "+
        "OPEN P1 FOR SELECT C1, C2 FROM %v WHERE C1 > 2 ORDER BY C1; "+
        "END PROC1;",
    tableName))
defer stmtProcCreate.Close()
rowsAffected, err = stmtProcCreate.Exe()
if err != nil {
    panic(err)
}

// call stored procedure
// pass *ora.Rset to Exec to receive the results of a sys_refcursor
stmtProcCall, err := ses.Prep("CALL PROC1(:1)")
defer stmtProcCall.Close()
if err != nil {
    panic(err)
}
procRset := &ora.Rset{}
rowsAffected, err = stmtProcCall.Exe(procRset)
if err != nil {
    panic(err)
}
if procRset.IsOpen() {
    for procRset.Next() {
        fmt.Println(procRset.Row[0], emptyString(procRset.Row[1].(string)))
    }
    if procRset.Err() != nil {
        panic(procRset.Err())
    }
    fmt.Println(procRset.Len())
}

0
1
4
1 Go is expressive, concise, clean, and efficient.
2 Its concurrency mechanisms make it easy to
3 <empty>
4 It's a fast, statically typed, compiled
5 One of Go's key design goals is code
1
1
3 <empty>
4 It's a fast, statically typed, compiled
5 One of Go's key design goals is code
3

Constants

const (
    // The driver name registered with the database/sql package.
    Name string = "ora"

    // The driver version sent to an Oracle server and visible in
    // V$SESSION_CONNECT_INFO or GV$SESSION_CONNECT_INFO.
    Version string = "v4.1.9"
)

const (
    NoPool  = PoolType(0)
    DRCPool = PoolType(1)
    SPool   = PoolType(2)
    CPool   = PoolType(3)
)

const (
    DefaultPoolSize      = 4
    DefaultEvictDuration = time.Minute
)

const (
    MaxFetchLen = 128
    MinFetchLen = 8
)

const (
    // SysDefault is the default, normal session mode.
    SysDefault = SessionMode(iota)
    // SysDba is for connecting as SYSDBA.
    SysDba
    // SysOper is for connectiong as SYSOPER.
    SysOper
)

Variables

Schema may optionally be specified to prefix a table name in the sql generated by the ora.Ins, ora.Upd, ora.Del, and ora.Sel methods.

var Schema string

func AddTbl ¶

func AddTbl(v interface{}, tblName string) (err error)

AddTbl maps a table name to a struct type when a struct type name is not identitcal to an Oracle table name.

AddTbl is optional and used by the orm-like methods ora.Ins, ora.Upd, ora.Del, and ora.Sel.

AddTbl may be called once during the lifetime of the driver.

func Del ¶

func Del(v interface{}, ses *Ses) (err error)

Del deletes a struct from an Oracle table returning a possible error.

Specify a struct, or struct pointer to parameter 'v' and an open Ses to parameter 'ses'.

Del requires one struct field tagged with `db:"pk"`. The field tagged with `db:"pk"` is used in a sql WHERE clause.

By default, Del generates and executes a sql DELETE statement based on the struct name and one exported field name tagged with `db:"pk"`. A struct name is used for the table name and a field name is used for a column name. Prior to calling Del, you may specify an alternative table name to ora.AddTbl. An alternative column name may be specified to the field tag `db:"column_name"`.

Set ora.Schema to specify an optional table name prefix.

func DescribeQuery ¶

func DescribeQuery(db *sql.DB, qry string) ([]DescribedColumn, error)

DescribeQuery parses the query and returns the column types, as DBMS_SQL.describe_column does.

func GctName ¶

func GctName(gct GoColumnType) string

func GetCompileErrors ¶

func GetCompileErrors(ses *Ses, all bool) ([]CompileError, error)

GetCompileErrors returns the slice of the errors in user_errors.

If all is false, only errors are returned; otherwise, warnings, too.

func Ins ¶

func Ins(v interface{}, ses *Ses) (err error)

Ins inserts a struct into an Oracle table returning a possible error.

Specify a struct, or struct pointer to parameter 'v' and an open Ses to parameter 'ses'.

Optional struct field tags `db:"column_name,id,-"` may be specified to control how the sql INSERT statement is generated.

By default, Ins generates and executes a sql INSERT statement based on the struct name and all exported field names. A struct name is used for the table name and a field name is used for a column name. Prior to calling Ins, you may specify an alternative table name to ora.AddTbl. An alternative column name may be specified to the field tag `db:"column_name"`. Specifying the `db:"-"` tag will remove a field from the INSERT statement.

The optional `db:"id"` field tag may combined with the `db:"pk"` tag. A field tagged with `db:"pk,id"` indicates a field is a primary key backed by an Oracle identity sequence. `db:"pk,id"` may be tagged to one field per struct. When `db:"pk,id"` is tagged to a field Ins generates a RETURNING clause to recevie a db generated identity value. The `db:"id"` tag is not required and Ins will insert a struct to a table without returning an identity value.

Set ora.Schema to specify an optional table name prefix.

func NumEnv ¶

func NumEnv() int

NumEnv returns the number of open Oracle environments.

func Register ¶

func Register(cfg DrvCfg)

Register used to register the ora database driver with the database/sql package, but this is automatic now - so this function is deprecated, has the same effect as SetCfg.

func Sel ¶

func Sel(v interface{}, rt ResType, ses *Ses, where string, whereParams ...interface{}) (result interface{}, err error)

Sel selects structs from an Oracle table returning a specified container of structs and a possible error.

Specify a struct, or struct pointer to parameter 'v' to indicate the struct return type. Specify a ResType to parameter 'rt' to indicate the container return type. Possible container return types include a slice of structs, slice of struct pointers, map of structs, and map of struct pointers. Specify an open Ses to parameter 'ses'. Optionally specify a where clause to parameter 'where' and where parameters to variadic parameter 'whereParams'.

Optional struct field tags `db:"column_name,omit"` may be specified to control how the sql SELECT statement is generated. Optional struct field tags `db:"pk,fk1,fk2,fk3,fk4"` control how a map return type is generated.

A slice may be returned by specifying one of the 'SliceOf' ResTypes to parameter 'rt'. Specify a SliceOfPtr to return a slice of struct pointers. Specify a SliceOfVal to return a slice of structs.

A map may be returned by specifying one of the 'MapOf' ResTypes to parameter 'rt'. The map key type is based on a struct field type tagged with one of `db:"pk"`, `db:"fk1"`, `db:"fk2"`, `db:"fk3"`, or `db:"fk4"` matching the specified ResType suffix Pk, Fk1, Fk2, Fk3, or Fk4. The map value type is a struct pointer when a 'MapOfPtr' ResType is specified. The map value type is a struct when a 'MapOfVal' ResType is specified. For example, tagging a uint64 struct field with `db:"pk"` and specifying a MapOfPtrPk generates a map with a key type of uint64 and a value type of struct pointer.

ResTypes available to specify to parameter 'rt' are MapOfPtrPk, MapOfPtrFk1, MapOfPtrFk2, MapOfPtrFk3, MapOfPtrFk4, MapOfValPk, MapOfValFk1, MapOfValFk2, MapOfValFk3, and MapOfValFk4.

Set ora.Schema to specify an optional table name prefix.

func SetCfg ¶

func SetCfg(cfg DrvCfg)

SetCfg applies the specified cfg to the ora database driver.

func SplitDSN ¶

func SplitDSN(dsn string) (username, password, sid string)

SplitDSN splits the user/password@dblink string to username, password and dblink, to be used as SesCfg.Username, SesCfg.Password, SrvCfg.Dblink.

func Upd ¶

func Upd(v interface{}, ses *Ses) (err error)

Upd updates a struct to an Oracle table returning a possible error.

Specify a struct, or struct pointer to parameter 'v' and an open Ses to parameter 'ses'.

Upd requires one struct field tagged with `db:"pk"`. The field tagged with `db:"pk"` is used in a sql WHERE clause. Optional struct field tags `db:"column_name,-"` may be specified to control how the sql UPDATE statement is generated.

By default, Upd generates and executes a sql UPDATE statement based on the struct name and all exported field names. A struct name is used for the table name and a field name is used for a column name. Prior to calling Upd, you may specify an alternative table name to ora.AddTbl. An alternative column name may be specified to the field tag `db:"column_name"`. Specifying the `db:"-"` tag will remove a field from the UPDATE statement.

Set ora.Schema to specify an optional table name prefix.

func WithStmtCfg ¶

func WithStmtCfg(ctx context.Context, cfg StmtCfg) context.Context

WithStmtCfg returns a new context, with the given cfg that can be used to configure several parameters.

WARNING: the StmtCfg must be derived from Cfg(), or NewStmtCfg(), as an empty StmtCfg is not usable!

type Bfile ¶

Bfile represents a nullable BFILE Oracle value.

type Bfile struct {
    IsNull         bool
    DirectoryAlias string
    Filename       string
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 bfile)", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.Bfile
a := ora.Bfile{IsNull: false, DirectoryAlias: "TEMP_DIR", Filename: "test.txt"}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// fetch ora.Bfile
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName))
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Printf("%v", rset.Row[0])
}

{false TEMP_DIR test.txt}

func (Bfile) Equals ¶

func (this Bfile) Equals(other Bfile) bool

Equals returns true when the receiver and specified Bfile are both null, or when the receiver and specified Bfile are both not null, DirectoryAlias are equal and Filename are equal.

type Bool ¶

Bool is a nullable bool.

type Bool struct {
    IsNull bool
    Value  bool
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 char(1 byte))", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.Bool slice
a := make([]ora.Bool, 5)
a[0] = ora.Bool{Value: true}
a[1] = ora.Bool{Value: false}
a[2] = ora.Bool{IsNull: true}
a[3] = ora.Bool{Value: false}
a[4] = ora.Bool{Value: true}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// Specify ora.OraB to Prep method to return nullable ora.Bool values
// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraB)
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Println(rset.Row[0])
}

{false true}
{false false}
{true false}
{false false}
{false true}

func (Bool) Equals ¶

func (this Bool) Equals(other Bool) bool

Equals returns true when the receiver and specified Bool are both null, or when the receiver and specified Bool are both not null and Values are equal.

func (Bool) MarshalJSON ¶

func (this Bool) MarshalJSON() ([]byte, error)

func (*Bool) UnmarshalJSON ¶

func (this *Bool) UnmarshalJSON(p []byte) error

type Column ¶

type Column struct {
    Name      string
    Type      C.ub2
    Length    uint32
    Precision C.sb2
    Scale     C.sb1
}

type CompileError ¶

CompileError represents a compile-time error as in user_errors view.

type CompileError struct {
    Owner, Name, Type    string
    Line, Position, Code int64
    Text                 string
    Warning              bool
}

func (CompileError) Error ¶

func (ce CompileError) Error() string

type Con ¶

Con is an Oracle connection associated with a server and session.

Implements the driver.Conn interface.

type Con struct {
    // contains filtered or unexported fields
}

func (*Con) Begin ¶

func (con *Con) Begin() (driver.Tx, error)

Begin starts a transaction.

Begin is a member of the driver.Conn interface.

func (*Con) BeginTx ¶

func (con *Con) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error)

BeginTx starts and returns a new transaction. The provided context should be used to roll the transaction back if it is cancelled.

If the driver does not support setting the isolation level and one is set or if there is a set isolation level but the set level is not supported, an error must be returned.

If the read-only value is true to either set the read-only transaction property if supported or return an error if it is not supported.

func (*Con) Close ¶

func (con *Con) Close() (err error)

Close ends a session and disconnects from an Oracle server.

Close is a member of the driver.Conn interface.

func (*Con) IsOpen ¶

func (con *Con) IsOpen() bool

IsOpen returns true when the connection to the Oracle server is open; otherwise, false.

Calling Close will cause IsOpen to return false. Once closed, a connection cannot be re-opened. To open a new connection call Open on a driver.

func (*Con) Name ¶

func (s *Con) Name(calc func() string) string

Name sets the name to the result of calc once, then returns that result forever. (Effectively caches the result of calc().)

func (*Con) Ping ¶

func (con *Con) Ping(ctx context.Context) error

Ping makes a round-trip call to an Oracle server to confirm that the connection is active.

func (*Con) Prepare ¶

func (con *Con) Prepare(query string) (driver.Stmt, error)

Prepare readies a sql string for use.

Prepare is a member of the driver.Conn interface.

func (*Con) PrepareContext ¶

func (con *Con) PrepareContext(ctx context.Context, query string) (driver.Stmt, error)

PrepareContext returns a prepared statement, bound to this connection. context is for the preparation of the statement, it must not store the context within the statement itself.

type Date ¶

Date is a nullable date, for low (second) precisions (OCIDate)

type Date struct {
    date.Date
}

type DescribedColumn ¶

DescribedColumn type for describing a column (see DescribeQuery).

type DescribedColumn struct {
    Column

    Schema                 string
    Nullable               bool
    CharsetID, CharsetForm int
}

type Drv ¶

Drv represents an Oracle database driver.

Drv is not meant to be called by user-code.

Drv implements the driver.Driver interface.

type Drv struct {
    sync.RWMutex
    // contains filtered or unexported fields
}

func (*Drv) Cfg ¶

func (drv *Drv) Cfg() DrvCfg

func (*Drv) Open ¶

func (drv *Drv) Open(conStr string) (driver.Conn, error)

Open opens a connection to an Oracle server with the database/sql environment.

This is intended to be called by the database/sql package only.

Alternatively, you may call Env.OpenCon to create an *ora.Con.

Open is a member of the driver.Driver interface.

func (*Drv) SetCfg ¶

func (drv *Drv) SetCfg(cfg DrvCfg)

type DrvCfg ¶

DrvCfg represents configuration values for the ora package.

type DrvCfg struct {
    StmtCfg
    Log LogDrvCfg
}

func Cfg ¶

func Cfg() DrvCfg

Cfg returns the ora database driver's cfg.

func NewDrvCfg ¶

func NewDrvCfg() DrvCfg

NewDrvCfg creates a DrvCfg with default values.

func (DrvCfg) SetBinaryDouble ¶

func (c DrvCfg) SetBinaryDouble(gct GoColumnType) DrvCfg

func (DrvCfg) SetBinaryFloat ¶

func (c DrvCfg) SetBinaryFloat(gct GoColumnType) DrvCfg

func (DrvCfg) SetBlob ¶

func (c DrvCfg) SetBlob(gct GoColumnType) DrvCfg

func (DrvCfg) SetByteSlice ¶

func (c DrvCfg) SetByteSlice(gct GoColumnType) DrvCfg

func (DrvCfg) SetChar ¶

func (c DrvCfg) SetChar(gct GoColumnType) DrvCfg

func (DrvCfg) SetChar1 ¶

func (c DrvCfg) SetChar1(gct GoColumnType) DrvCfg

func (DrvCfg) SetClob ¶

func (c DrvCfg) SetClob(gct GoColumnType) DrvCfg

func (DrvCfg) SetDate ¶

func (c DrvCfg) SetDate(gct GoColumnType) DrvCfg

func (DrvCfg) SetFloat ¶

func (c DrvCfg) SetFloat(gct GoColumnType) DrvCfg

func (DrvCfg) SetLobBufferSize ¶

func (c DrvCfg) SetLobBufferSize(size int) DrvCfg

func (DrvCfg) SetLogger ¶

func (c DrvCfg) SetLogger(lgr Logger) DrvCfg

func (DrvCfg) SetLong ¶

func (c DrvCfg) SetLong(gct GoColumnType) DrvCfg

func (DrvCfg) SetLongBufferSize ¶

func (c DrvCfg) SetLongBufferSize(size uint32) DrvCfg

func (DrvCfg) SetLongRaw ¶

func (c DrvCfg) SetLongRaw(gct GoColumnType) DrvCfg

func (DrvCfg) SetLongRawBufferSize ¶

func (c DrvCfg) SetLongRawBufferSize(size uint32) DrvCfg

func (DrvCfg) SetNumberBigFloat ¶

func (c DrvCfg) SetNumberBigFloat(gct GoColumnType) DrvCfg

func (DrvCfg) SetNumberBigInt ¶

func (c DrvCfg) SetNumberBigInt(gct GoColumnType) DrvCfg

func (DrvCfg) SetNumberFloat ¶

func (c DrvCfg) SetNumberFloat(gct GoColumnType) DrvCfg

func (DrvCfg) SetNumberInt ¶

func (c DrvCfg) SetNumberInt(gct GoColumnType) DrvCfg

func (DrvCfg) SetPrefetchMemorySize ¶

func (c DrvCfg) SetPrefetchMemorySize(prefetchMemorySize uint32) DrvCfg

func (DrvCfg) SetPrefetchRowCount ¶

func (c DrvCfg) SetPrefetchRowCount(prefetchRowCount uint32) DrvCfg

func (DrvCfg) SetRaw ¶

func (c DrvCfg) SetRaw(gct GoColumnType) DrvCfg

func (DrvCfg) SetStmtCfg ¶

func (cfg DrvCfg) SetStmtCfg(stmtCfg StmtCfg) DrvCfg

func (DrvCfg) SetStringPtrBufferSize ¶

func (c DrvCfg) SetStringPtrBufferSize(size int) DrvCfg

func (DrvCfg) SetTimestamp ¶

func (c DrvCfg) SetTimestamp(gct GoColumnType) DrvCfg

func (DrvCfg) SetTimestampLtz ¶

func (c DrvCfg) SetTimestampLtz(gct GoColumnType) DrvCfg

func (DrvCfg) SetTimestampTz ¶

func (c DrvCfg) SetTimestampTz(gct GoColumnType) DrvCfg

func (DrvCfg) SetVarchar ¶

func (c DrvCfg) SetVarchar(gct GoColumnType) DrvCfg

type DrvExecResult ¶

DrvExecResult is an Oracle execution result.

DrvExecResult implements the driver.Result interface.

type DrvExecResult struct {
    // contains filtered or unexported fields
}

func (*DrvExecResult) LastInsertId ¶

func (er *DrvExecResult) LastInsertId() (int64, error)

LastInsertId returns the identity value from an insert statement.

There are two setup steps required to reteive the LastInsertId. One, specify a 'returning into' clause in the SQL insert statement. And, two, specify a nil parameter to DB.Exec or DrvStmt.Exec.

For example:

db, err := sql.Open("ora", "scott/tiger@orcl")

db.Exec("CREATE TABLE T1 (C1 NUMBER(19,0) GENERATED ALWAYS AS IDENTITY (START WITH 1 INCREMENT BY 1), C2 VARCHAR2(48 CHAR))")

result, err := db.Exec("INSERT INTO T1 (C2) VALUES ('GO') RETURNING C1 /*lastInsertId*/ INTO :C1", nil)

id, err := result.LastInsertId()

func (*DrvExecResult) RowsAffected ¶

func (er *DrvExecResult) RowsAffected() (int64, error)

RowsAffected returns the number of rows affected by the exec statement.

type DrvQueryResult ¶

DrvQueryResult contains methods to retrieve the results of a SQL select statement.

DrvQueryResult implements the driver.Rows interface.

type DrvQueryResult struct {
    // contains filtered or unexported fields
}

func (*DrvQueryResult) Close ¶

func (qr *DrvQueryResult) Close() error

Close performs no operations.

Close is a member of the driver.Rows interface.

func (*DrvQueryResult) ColumnTypeDatabaseTypeName ¶

func (qr *DrvQueryResult) ColumnTypeDatabaseTypeName(index int) string

ColumnTypeDatabaseTypeName returns the database system type name without the length, in uppercase.

func (*DrvQueryResult) ColumnTypeLength ¶

func (qr *DrvQueryResult) ColumnTypeLength(index int) (length int64, ok bool)

ColumnTypeLength returns the length of the column type if the column is a variable length type. If the column is not a variable length type ok should return false. If length is not limited other than system limits, it should return math.MaxInt64.

func (*DrvQueryResult) ColumnTypeNullable ¶

func (qr *DrvQueryResult) ColumnTypeNullable(index int) (nullable, ok bool)

ColumnTypeNullable returns true if it is known the column may be null, or false if the column is known to be not nullable. If the column nullability is unknown, ok should be false.

func (*DrvQueryResult) ColumnTypePrecisionScale ¶

func (qr *DrvQueryResult) ColumnTypePrecisionScale(index int) (precision, scale int64, ok bool)

ColumnTypePrecisionScale return the precision and scale for decimal types. If not applicable, ok should be false.

func (*DrvQueryResult) ColumnTypeScanType ¶

func (qr *DrvQueryResult) ColumnTypeScanType(index int) reflect.Type

func (*DrvQueryResult) Columns ¶

func (qr *DrvQueryResult) Columns() []string

Columns returns query column names.

Columns is a member of the driver.Rows interface.

func (*DrvQueryResult) HasNextResultSet ¶

func (qr *DrvQueryResult) HasNextResultSet() bool

HasNextResultSet reports whether there is another result set after the current one.

func (*DrvQueryResult) Next ¶

func (qr *DrvQueryResult) Next(dest []driver.Value) (err error)

Next populates the specified slice with the next row of data.

Returns io.EOF when there are no more rows.

Next is a member of the driver.Rows interface.

func (*DrvQueryResult) NextResultSet ¶

func (qr *DrvQueryResult) NextResultSet() error

NextResultSet advances the driver to the next result set even if there are remaining rows in the current result set.

type DrvStmt ¶

DrvStmt is an Oracle statement associated with a session.

DrvStmt wraps Stmt and is intended for use by the database/sql/driver package.

DrvStmt implements the driver.Stmt interface.

type DrvStmt struct {
    // contains filtered or unexported fields
}

func (*DrvStmt) Close ¶

func (ds *DrvStmt) Close() error

Close closes the SQL statement.

Close is a member of the driver.Stmt interface.

func (*DrvStmt) Exec ¶

func (ds *DrvStmt) Exec(values []driver.Value) (driver.Result, error)

Exec executes an Oracle SQL statement on a server. Exec returns a driver.Result and a possible error.

Exec is a member of the driver.Stmt interface.

db, _ := sql.Open("ora", testConStr)
defer db.Close()

tableName := tableName()
db.Exec(fmt.Sprintf("create table %v (c1 number)", tableName))
db.Exec(fmt.Sprintf("insert into %v (c1) values (9)", tableName))

// placeholder ':1' is bound by position; ':1' may be any name
var v int64 = 9
result, _ := db.Exec(fmt.Sprintf("delete from %v where c1 = :1", tableName), v)
rowsAffected, _ := result.RowsAffected()
fmt.Println(rowsAffected)

1

db, _ := sql.Open("ora", testConStr)
defer db.Close()

tableName := tableName()
db.Exec(fmt.Sprintf("create table %v (c1 number)", tableName))

// placeholder ':c1' is bound by position; ':c1' may be any name
var value int64 = 9
result, err := db.Exec(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName), value)
if err != nil {
    panic(err)
}
rowsAffected, _ := result.RowsAffected()
fmt.Println(rowsAffected)

1

db, _ := sql.Open("ora", testConStr)
defer db.Close()

tableName := tableName()
db.Exec(fmt.Sprintf("create table %v (c1 number)", tableName))
db.Exec(fmt.Sprintf("insert into %v (c1) values (9)", tableName))

// placeholder ':three' and ':nine' are bound by position; ':three' and ':nine' may be any name
var three int64 = 3
var nine int64 = 9
result, _ := db.Exec(fmt.Sprintf("update %v set c1 = :three where c1 = :nine", tableName), three, nine)
rowsAffected, _ := result.RowsAffected()
fmt.Println(rowsAffected)

1

func (*DrvStmt) ExecContext ¶

func (ds *DrvStmt) ExecContext(ctx context.Context, values []driver.NamedValue) (driver.Result, error)

ExecContext enhances the Stmt interface by providing Exec with context. ExecContext must honor the context timeout and return when it is cancelled.

func (*DrvStmt) NumInput ¶

func (ds *DrvStmt) NumInput() int

NumInput returns the number of placeholders in a sql statement.

NumInput is a member of the driver.Stmt interface.

func (*DrvStmt) Query ¶

func (ds *DrvStmt) Query(values []driver.Value) (driver.Rows, error)

Query runs a SQL query on an Oracle server. Query returns driver.Rows and a possible error.

Query is a member of the driver.Stmt interface.

func (*DrvStmt) QueryContext ¶

func (ds *DrvStmt) QueryContext(ctx context.Context, values []driver.NamedValue) (driver.Rows, error)

QueryContext enhances the Stmt interface by providing Query with context. QueryContext must honor the context timeout and return when it is cancelled.

type EmpLgr ¶

type EmpLgr struct{}

func (EmpLgr) Errorf ¶

func (e EmpLgr) Errorf(format string, v ...interface{})

func (EmpLgr) Errorln ¶

func (e EmpLgr) Errorln(v ...interface{})

func (EmpLgr) Infof ¶

func (e EmpLgr) Infof(format string, v ...interface{})

func (EmpLgr) Infoln ¶

func (e EmpLgr) Infoln(v ...interface{})

type Env ¶

Env represents an Oracle environment.

type Env struct {
    sync.RWMutex
    // contains filtered or unexported fields
}

func NewEnvSrvSes ¶

func NewEnvSrvSes(dsn string) (*Env, *Srv, *Ses, error)

NewEnvSrvSes is a comfort function which opens the environment, creates a connection (Srv) to the server, and opens a session (Ses), in one call.

Ideal for simple use cases.

func OpenEnv ¶

func OpenEnv() (env *Env, err error)

OpenEnv opens an Oracle environment.

Optionally specify a cfg parameter. If cfg is nil, default cfg values are applied.

func (*Env) Cfg ¶

func (env *Env) Cfg() StmtCfg

func (*Env) Close ¶

func (env *Env) Close() (err error)

Close disconnects from servers and resets optional fields.

func (*Env) IsOpen ¶

func (env *Env) IsOpen() bool

IsOpen returns true when the environment is open; otherwise, false.

Calling Close will cause IsOpen to return false. Once closed, the environment may be re-opened by calling Open.

func (*Env) Name ¶

func (s *Env) Name(calc func() string) string

Name sets the name to the result of calc once, then returns that result forever. (Effectively caches the result of calc().)

func (*Env) NewPool ¶

func (env *Env) NewPool(srvCfg SrvCfg, sesCfg SesCfg, size int) *Pool

NewPool returns an idle session pool, which evicts the idle sessions every minute, and automatically manages the required new connections (Srv).

This is done by maintaining a 1-1 pairing between the Srv and its Ses.

This pool does NOT limit the number of active connections, just helps reuse already established connections and sessions, lowering the resource usage on the server.

If size <= 0, then DefaultPoolSize is used.

func (*Env) NewSrvPool ¶

func (env *Env) NewSrvPool(srvCfg SrvCfg, size int) *SrvPool

NewSrvPool returns a connection pool, which evicts the idle connections in every minute. The pool holds at most size idle Srv. If size is zero, DefaultPoolSize will be used.

func (*Env) NumCon ¶

func (env *Env) NumCon() int

NumCon returns the number of open Oracle connections.

func (*Env) NumSrv ¶

func (env *Env) NumSrv() int

NumSrv returns the number of open Oracle servers.

func (*Env) OCINumberFromFloat ¶

func (env *Env) OCINumberFromFloat(dest *C.OCINumber, value float64, byteLen int) error

func (*Env) OCINumberFromInt ¶

func (env *Env) OCINumberFromInt(dest *C.OCINumber, value int64, byteLen int) error

func (*Env) OCINumberFromUint ¶

func (env *Env) OCINumberFromUint(dest *C.OCINumber, value uint64, byteLen int) error

func (*Env) OCINumberToFloat ¶

func (env *Env) OCINumberToFloat(src *C.OCINumber, byteLen int) (float64, error)

func (*Env) OCINumberToInt ¶

func (env *Env) OCINumberToInt(src *C.OCINumber, byteLen int) (int64, error)

func (*Env) OCINumberToUint ¶

func (env *Env) OCINumberToUint(src *C.OCINumber, byteLen int) (uint64, error)

func (*Env) OpenCon ¶

func (env *Env) OpenCon(dsn string) (con *Con, err error)

OpenCon starts an Oracle session on a server returning a *Con and possible error.

The connection string has the form username/password@dblink e.g., scott/tiger@orcl For connecting as SYSDBA or SYSOPER, append " AS SYSDBA" to the end of the connection string: "sys/sys as sysdba".

dblink is a connection identifier such as a net service name, full connection identifier, or a simple connection identifier. The dblink may be defined in the client machine's tnsnames.ora file.

func (*Env) OpenSrv ¶

func (env *Env) OpenSrv(cfg SrvCfg) (srv *Srv, err error)

OpenSrv connects to an Oracle server returning a *Srv and possible error.

func (*Env) SetCfg ¶

func (env *Env) SetCfg(cfg StmtCfg)

type Float32 ¶

Float32 is a nullable float32.

type Float32 struct {
    IsNull bool
    Value  float32
}

// setup
env, err := ora.OpenEnv()
if err != nil {
    panic(err)
}
defer env.Close()
srv, err := env.OpenSrv(testSrvCfg)
if err != nil {
    panic(err)
}
defer srv.Close()
ses, err := srv.OpenSes(testSesCfg)
if err != nil {
    panic(err)
}
defer ses.Close()

// create table
tableName := tableName()
stmt, err := ses.Prep(fmt.Sprintf("create table %v (c1 number(16,15))", tableName))
if err != nil {
    panic(err)
}
defer stmt.Close()
if _, err := stmt.Exe(); err != nil {
    panic(err)
}

// insert ora.Float32 slice
a := make([]ora.Float32, 5)
a[0] = ora.Float32{Value: -float32(6.28318)}
a[1] = ora.Float32{Value: -float32(3.14159)}
a[2] = ora.Float32{IsNull: true}
a[3] = ora.Float32{Value: float32(3.14159)}
a[4] = ora.Float32{Value: float32(6.28318)}
if stmt, err = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName)); err != nil {
    panic(err)
}
defer stmt.Close()
if _, err := stmt.Exe(a); err != nil {
    panic(err)
}

// Specify ora.OraF32 to Prep method to return nullable ora.Float32 values
// fetch records
if stmt, err = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraF32); err != nil {
    panic(err)
}
rset, err := stmt.Qry()
if err != nil {
    panic(err)
}
for rset.Next() {
    fmt.Println(rset.Row[0])
}
if err := rset.Err(); err != nil {
    panic(err)
}

{false -6.28318}
{false -3.14159}
{true 0}
{false 3.14159}
{false 6.28318}

func (Float32) Equals ¶

func (this Float32) Equals(other Float32) bool

Equals returns true when the receiver and specified Float32 are both null, or when the receiver and specified Float32 are both not null and Values are equal.

func (Float32) MarshalJSON ¶

func (this Float32) MarshalJSON() ([]byte, error)

func (*Float32) UnmarshalJSON ¶

func (this *Float32) UnmarshalJSON(p []byte) error

type Float64 ¶

Float64 is a nullable float64.

type Float64 struct {
    IsNull bool
    Value  float64
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number(16,15))", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.Float64 slice
a := make([]ora.Float64, 5)
a[0] = ora.Float64{Value: -float64(6.28318)}
a[1] = ora.Float64{Value: -float64(3.14159)}
a[2] = ora.Float64{IsNull: true}
a[3] = ora.Float64{Value: float64(3.14159)}
a[4] = ora.Float64{Value: float64(6.28318)}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// Specify ora.OraF64 to Prep method to return nullable ora.Float64 values
// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraF64)
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Println(rset.Row[0])
}

{false -6.28318}
{false -3.14159}
{true 0}
{false 3.14159}
{false 6.28318}

func (Float64) Equals ¶

func (this Float64) Equals(other Float64) bool

Equals returns true when the receiver and specified Float64 are both null, or when the receiver and specified Float64 are both not null and Values are equal.

func (Float64) MarshalJSON ¶

func (this Float64) MarshalJSON() ([]byte, error)

func (*Float64) UnmarshalJSON ¶

func (this *Float64) UnmarshalJSON(p []byte) error

type GoColumnType ¶

GoColumnType defines the Go type returned from a sql select column.

type GoColumnType uint

go column types

const (
    // D defines a sql select column based on its default mapping.
    D GoColumnType = iota + 1
    // I64 defines a sql select column as a Go int64.
    I64
    // I32 defines a sql select column as a Go int32.
    I32
    // I16 defines a sql select column as a Go int16.
    I16
    // I8 defines a sql select column as a Go int8.
    I8
    // U64 defines a sql select column as a Go uint64.
    U64
    // U32 defines a sql select column as a Go uint32.
    U32
    // U16 defines a sql select column as a Go uint16.
    U16
    // U8 defines a sql select column as a Go uint8.
    U8
    // F64 defines a sql select column as a Go float64.
    F64
    // F32 defines a sql select column as a Go float32.
    F32
    // OraI64 defines a sql select column as a nullable Go ora.Int64.
    OraI64
    // OraI32 defines a sql select column as a nullable Go ora.Int32.
    OraI32
    // OraI16 defines a sql select column as a nullable Go ora.Int16.
    OraI16
    // OraI8 defines a sql select column as a nullable Go ora.Int8.
    OraI8
    // OraU64 defines a sql select column as a nullable Go ora.Uint64.
    OraU64
    // OraU32 defines a sql select column as a nullable Go ora.Uint32.
    OraU32
    // OraU16 defines a sql select column as a nullable Go ora.Uint16.
    OraU16
    // OraU8 defines a sql select column as a nullable Go ora.Uint8.
    OraU8
    // OraF64 defines a sql select column as a nullable Go ora.Float64.
    OraF64
    // OraF32 defines a sql select column as a nullable Go ora.Float32.
    OraF32
    // T defines a sql select column as a Go time.Time.
    T
    // OraT defines a sql select column as a nullable Go ora.Time.
    OraT
    // S defines a sql select column as a Go string.
    S
    // OraS defines a sql select column as a nullable Go ora.String.
    OraS
    // B defines a sql select column as a Go bool.
    B
    // OraB defines a sql select column as a nullable Go ora.Bool.
    OraB
    // Bin defines a sql select column or bind parmeter as a Go byte slice.
    Bin
    // OraBin defines a sql select column as a nullable Go ora.Binary.
    OraBin
    // N defines a sql select column as a Go string for number.
    N
    // OraN defines a sql select column as a nullable Go string for number.
    OraN
    // L defins an sql select column as an ora.Lob.
    L
)

func (GoColumnType) String ¶

func (gct GoColumnType) String() string

type Id ¶

type Id struct {
    // contains filtered or unexported fields
}

type Int16 ¶

Int16 is a nullable int16.

type Int16 struct {
    IsNull bool
    Value  int16
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number(10,0))", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.Int16 slice
a := make([]ora.Int16, 5)
a[0] = ora.Int16{Value: -9}
a[1] = ora.Int16{Value: -1}
a[2] = ora.Int16{IsNull: true}
a[3] = ora.Int16{Value: 1}
a[4] = ora.Int16{Value: 9}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// Specify ora.OraI16 to Prep method to return nullable ora.Int16 values
// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraI16)
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Println(rset.Row[0])
}

{false -9}
{false -1}
{true 0}
{false 1}
{false 9}

func (Int16) Equals ¶

func (this Int16) Equals(other Int16) bool

Equals returns true when the receiver and specified Int16 are both null, or when the receiver and specified Int16 are both not null and Values are equal.

func (Int16) MarshalJSON ¶

func (this Int16) MarshalJSON() ([]byte, error)

func (*Int16) UnmarshalJSON ¶

func (this *Int16) UnmarshalJSON(p []byte) error

type Int32 ¶

Int32 is a nullable int32.

type Int32 struct {
    IsNull bool
    Value  int32
}

// setup
env, err := ora.OpenEnv()
if err != nil {
    panic(err)
}
defer env.Close()
srv, err := env.OpenSrv(testSrvCfg)
if err != nil {
    panic(err)
}
defer srv.Close()
ses, err := srv.OpenSes(testSesCfg)
if err != nil {
    panic(err)
}
defer ses.Close()

// create table
tableName := tableName()
stmt, err := ses.Prep(fmt.Sprintf("create table %v (c1 number(10,0))", tableName))
if err != nil {
    panic(err)
}
defer stmt.Close()
stmt.Exe()

// insert ora.Int32 slice
a := make([]ora.Int32, 5)
a[0] = ora.Int32{Value: -9}
a[1] = ora.Int32{Value: -1}
a[2] = ora.Int32{IsNull: true}
a[3] = ora.Int32{Value: 1}
a[4] = ora.Int32{Value: 9}
if stmt, err = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName)); err != nil {
    panic(err)
}
defer stmt.Close()
if _, err = stmt.Exe(a); err != nil {
    panic(err)
}

// Specify ora.OraI32 to Prep method to return nullable ora.Int32 values
// fetch records
if stmt, err = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraI32); err != nil {
    panic(err)
}
rset, err := stmt.Qry()
if err != nil {
    panic(err)
}
for rset.Next() {
    fmt.Println(rset.Row[0])
}
if err := rset.Err(); err != nil {
    panic(err)
}

{false -9}
{false -1}
{true 0}
{false 1}
{false 9}

func (Int32) Equals ¶

func (this Int32) Equals(other Int32) bool

Equals returns true when the receiver and specified Int32 are both null, or when the receiver and specified Int32 are both not null and Values are equal.

func (Int32) MarshalJSON ¶

func (this Int32) MarshalJSON() ([]byte, error)

func (*Int32) UnmarshalJSON ¶

func (this *Int32) UnmarshalJSON(p []byte) error

type Int64 ¶

Int64 is a nullable int64.

type Int64 struct {
    IsNull bool
    Value  int64
}

// setup
env, err := ora.OpenEnv()
if err != nil {
    panic(err)
}
defer env.Close()
srv, err := env.OpenSrv(testSrvCfg)
if err != nil {
    panic(err)
}
defer srv.Close()
ses, err := srv.OpenSes(testSesCfg)
if err != nil {
    panic(err)
}
defer ses.Close()

// create table
tableName := tableName()
stmt, err := ses.Prep(fmt.Sprintf("create table %v (c1 number(10,0))", tableName))
if err != nil {
    panic(err)
}
defer stmt.Close()
if _, err := stmt.Exe(); err != nil {
    panic(err)
}

// insert ora.Int64 slice
a := make([]ora.Int64, 5)
a[0] = ora.Int64{Value: -9}
a[1] = ora.Int64{Value: -1}
a[2] = ora.Int64{IsNull: true}
a[3] = ora.Int64{Value: 1}
a[4] = ora.Int64{Value: 9}
if stmt, err = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName)); err != nil {
    panic(err)
}
defer stmt.Close()
stmt.Exe(a)

// Specify ora.OraI64 to Prep method to return nullable ora.Int64 values
// fetch records
if stmt, err = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraI64); err != nil {
    panic(err)
}
rset, err := stmt.Qry()
if err != nil {
    panic(err)
}
for rset.Next() {
    fmt.Println(rset.Row[0])
}
if err := rset.Err(); err != nil {
    panic(err)
}

{false -9}
{false -1}
{true 0}
{false 1}
{false 9}

func (Int64) Equals ¶

func (this Int64) Equals(other Int64) bool

Equals returns true when the receiver and specified Int64 are both null, or when the receiver and specified Int64 are both not null and Values are equal.

func (Int64) MarshalJSON ¶

func (this Int64) MarshalJSON() ([]byte, error)

func (*Int64) UnmarshalJSON ¶

func (this *Int64) UnmarshalJSON(p []byte) error

type Int8 ¶

Int8 is a nullable int8.

type Int8 struct {
    IsNull bool
    Value  int8
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number(10,0))", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.Int8 slice
a := make([]ora.Int8, 5)
a[0] = ora.Int8{Value: -9}
a[1] = ora.Int8{Value: -1}
a[2] = ora.Int8{IsNull: true}
a[3] = ora.Int8{Value: 1}
a[4] = ora.Int8{Value: 9}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// Specify ora.OraI8 to Prep method to return nullable ora.Int8 values
// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraI8)
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Println(rset.Row[0])
}

{false -9}
{false -1}
{true 0}
{false 1}
{false 9}

func (Int8) Equals ¶

func (this Int8) Equals(other Int8) bool

Equals returns true when the receiver and specified Int8 are both null, or when the receiver and specified Int8 are both not null and Values are equal.

func (Int8) MarshalJSON ¶

func (this Int8) MarshalJSON() ([]byte, error)

func (*Int8) UnmarshalJSON ¶

func (this *Int8) UnmarshalJSON(p []byte) error

type IntervalDS ¶

IntervalDS represents a nullable INTERVAL DAY TO SECOND Oracle value.

type IntervalDS struct {
    IsNull     bool
    Day        int32
    Hour       int32
    Minute     int32
    Second     int32
    Nanosecond int32
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 interval day to second)", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.IntervalDS slice
a := make([]ora.IntervalDS, 5)
a[0] = ora.IntervalDS{Day: 1, Hour: 1, Minute: 1, Second: 1, Nanosecond: 123456789}
a[1] = ora.IntervalDS{Day: 59, Hour: 59, Minute: 59, Second: 59, Nanosecond: 123456789}
a[2] = ora.IntervalDS{IsNull: true}
a[3] = ora.IntervalDS{Day: -1, Hour: -1, Minute: -1, Second: -1, Nanosecond: -123456789}
a[4] = ora.IntervalDS{Day: -59, Hour: -59, Minute: -59, Second: -59, Nanosecond: -123456789}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// fetch ora.IntervalDS
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName))
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Printf("%v, ", rset.Row[0])
}
// {false 1 1 1 1 123457000}, {false 59 59 59 59 123457000}, {true 0 0 0 0 0}, {false -1 -1 -1 -1 -123457000}, {false -59 -59 -59 -59 -123457000},

func (IntervalDS) Equals ¶

func (this IntervalDS) Equals(other IntervalDS) bool

Equals returns true when the receiver and specified IntervalDS are both null, or when the receiver and specified IntervalDS are both not null, and all other fields are equal.

func (IntervalDS) ShiftTime ¶

func (this IntervalDS) ShiftTime(t time.Time) time.Time

ShiftTime returns a new Time with IntervalDS applied.

interval := ora.IntervalDS{Day: 1, Hour: 1, Minute: 1, Second: 1, Nanosecond: 123456789}
actual := interval.ShiftTime(time.Date(2000, time.Month(1), 1, 0, 0, 0, 0, time.Local))
fmt.Println(actual.Day(), actual.Hour(), actual.Minute(), actual.Second(), actual.Nanosecond())

2 1 1 1 123456789

func (IntervalDS) String ¶

func (this IntervalDS) String() string

type IntervalYM ¶

IntervalYM represents a nullable INTERVAL YEAR TO MONTH Oracle value.

type IntervalYM struct {
    IsNull bool
    Year   int32
    Month  int32
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 interval year to month)", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.IntervalYM slice
a := make([]ora.IntervalYM, 5)
a[0] = ora.IntervalYM{Year: 1, Month: 1}
a[1] = ora.IntervalYM{Year: 99, Month: 9}
a[2] = ora.IntervalYM{IsNull: true}
a[3] = ora.IntervalYM{Year: -1, Month: -1}
a[4] = ora.IntervalYM{Year: -99, Month: -9}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// fetch ora.IntervalYM
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName))
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Printf("%v, ", rset.Row[0])
}

0001-01, 0099-09, , -001--1, -099--9,

func (IntervalYM) Equals ¶

func (this IntervalYM) Equals(other IntervalYM) bool

Equals returns true when the receiver and specified IntervalYM are both null, or when the receiver and specified IntervalYM are both not null, Year are equal and Month are equal.

func (IntervalYM) ShiftTime ¶

func (this IntervalYM) ShiftTime(t time.Time) time.Time

ShiftTime returns a new Time with IntervalYM applied.

interval := ora.IntervalYM{Year: 1, Month: 1}
actual := interval.ShiftTime(time.Date(2000, time.January, 0, 0, 0, 0, 0, time.Local))
fmt.Println(actual.Year(), actual.Month(), actual.Day())
// returns normalized date per time.AddDate

func (IntervalYM) String ¶

func (this IntervalYM) String() string

type Lob ¶

Lob Reader is sent to the DB on bind, if not nil. The Reader can read the LOB if we bind a *Lob, Closer will close the LOB. Set Lob.C = true to make this a CLOB reader!

type Lob struct {
    io.Reader
    io.Closer
    C bool
}

func (*Lob) Bytes ¶

func (this *Lob) Bytes() ([]byte, error)

Bytes will read the contents of the Lob.Reader, and will keep that for future.

func (*Lob) Close ¶

func (this *Lob) Close() error

func (*Lob) Equals ¶

func (this *Lob) Equals(other Lob) bool

Equals returns true when the receiver and specified Lob are both null, or when they both not null and share the same Reader.

func (*Lob) MarshalJSON ¶

func (this *Lob) MarshalJSON() ([]byte, error)

func (*Lob) Read ¶

func (this *Lob) Read(p []byte) (int, error)

func (*Lob) Scan ¶

func (this *Lob) Scan(src interface{}) error

func (*Lob) String ¶

func (this *Lob) String() string

func (*Lob) UnmarshalJSON ¶

func (this *Lob) UnmarshalJSON(p []byte) error

func (*Lob) Value ¶

func (this *Lob) Value() (driver.Value, error)

Value returns what Lob.Bytes returns.

type LogConCfg ¶

LogConCfg represents Con logging configuration values.

type LogConCfg struct {
    // Close determines whether the Con.Close method is logged.
    //
    // The default is true.
    Close bool

    // Prepare determines whether the Con.Prepare method is logged.
    //
    // The default is true.
    Prepare bool

    // Begin determines whether the Con.Begin method is logged.
    //
    // The default is true.
    Begin bool

    // Ping determines whether the Con.Ping method is logged.
    //
    // The default is true.
    Ping bool
}

func NewLogConCfg ¶

func NewLogConCfg() LogConCfg

NewLogConCfg creates a LogTxCfg with default values.

type LogDrvCfg ¶

LogDrvCfg represents package-level logging configuration values.

type LogDrvCfg struct {
    // Logger writes log messages.
    // Logger can be replaced with any type implementing the Logger interface.
    //
    // The default implementation uses the standard lib's log package.
    //
    // For a glog-based implementation, see gopkg.in/rana/ora.v4/glg.
    // LogDrvCfg.Logger = glg.Log
    //
    // For an gopkg.in/inconshreveable/log15.v2-based, see gopkg.in/rana/ora.v4/lg15.
    // LogDrvCfg.Logger = lg15.Log
    Logger Logger

    // OpenEnv determines whether the ora.OpenEnv method is logged.
    //
    // The default is true.
    OpenEnv bool

    // Ins determines whether the ora.Ins method is logged.
    //
    // The default is true.
    Ins bool

    // Upd determines whether the ora.Upd method is logged.
    //
    // The default is true.
    Upd bool

    // Del determines whether the ora.Del method is logged.
    //
    // The default is true.
    Del bool

    // Sel determines whether the ora.Sel method is logged.
    //
    // The default is true.
    Sel bool

    // AddTbl determines whether the ora.AddTbl method is logged.
    //
    // The default is true.
    AddTbl bool

    Env  LogEnvCfg
    Srv  LogSrvCfg
    Ses  LogSesCfg
    Stmt LogStmtCfg
    Tx   LogTxCfg
    Con  LogConCfg
    Rset LogRsetCfg
}

func NewLogDrvCfg ¶

func NewLogDrvCfg() LogDrvCfg

NewLogDrvCfg creates a LogDrvCfg with default values.

func (LogDrvCfg) IsEnabled ¶

func (c LogDrvCfg) IsEnabled(enabled bool) bool

IsEnabled returns whether the logger is enabled (and enabled is true).

type LogEnvCfg ¶

LogEnvCfg represents Env logging configuration values.

type LogEnvCfg struct {
    // Close determines whether the Env.Close method is logged.
    //
    // The default is true.
    Close bool

    // OpenSrv determines whether the Env.OpenSrv method is logged.
    //
    // The default is true.
    OpenSrv bool

    // OpenCon determines whether the Env.OpenCon method is logged.
    //
    // The default is true.
    OpenCon bool
}

func NewLogEnvCfg ¶

func NewLogEnvCfg() LogEnvCfg

NewLogEnvCfg creates a LogEnvCfg with default values.

type LogRsetCfg ¶

LogRsetCfg represents Rset logging configuration values.

type LogRsetCfg struct {
    // Close determines whether the Rset.close method is logged.
    //
    // The default is true.
    Close bool

    // BeginRow determines whether the Rset.beginRow method is logged.
    //
    // The default is false.
    BeginRow bool

    // EndRow determines whether the Rset.endRow method is logged.
    //
    // The default is false.
    EndRow bool

    // Next determines whether the Rset.Next method is logged.
    //
    // The default is false.
    Next bool

    // Open determines whether the Rset.open method is logged.
    //
    // The default is true.
    Open bool

    // OpenDefs determines whether Select-list definitions with the Rset.open method are logged.
    //
    // The default is true.
    OpenDefs bool
}

func NewLogRsetCfg ¶

func NewLogRsetCfg() LogRsetCfg

NewLogTxCfg creates a LogRsetCfg with default values.

type LogSesCfg ¶

LogSesCfg represents Ses logging configuration values.

type LogSesCfg struct {
    // Close determines whether the Ses.Close method is logged.
    //
    // The default is true.
    Close bool

    // PrepAndExe determines whether the Ses.PrepAndExe method is logged.
    //
    // The default is true.
    PrepAndExe bool

    // PrepAndQry determines whether the Ses.PrepAndQry method is logged.
    //
    // The default is true.
    PrepAndQry bool

    // Prep determines whether the Ses.Prep method is logged.
    //
    // The default is true.
    Prep bool

    // Ins determines whether the Ses.Ins method is logged.
    //
    // The default is true.
    Ins bool

    // Upd determines whether the Ses.Upd method is logged.
    //
    // The default is true.
    Upd bool

    // Sel determines whether the Ses.Sel method is logged.
    //
    // The default is true.
    Sel bool

    // StartTx determines whether the Ses.StartTx method is logged.
    //
    // The default is true.
    StartTx bool

    // Ping determines whether the Ses.Ping method is logged.
    //
    // The default is true.
    Ping bool

    // Break determines whether the Ses.Break method is logged.
    //
    // The default is true.
    Break bool
}

func NewLogSesCfg ¶

func NewLogSesCfg() LogSesCfg

NewLogSesCfg creates a LogSesCfg with default values.

type LogSrvCfg ¶

LogSrvCfg represents Srv logging configuration values.

type LogSrvCfg struct {
    // Close determines whether the Srv.Close method is logged.
    //
    // The default is true.
    Close bool

    // OpenSes determines whether the Srv.OpenSes method is logged.
    //
    // The default is true.
    OpenSes bool

    // Version determines whether the Srv.Version method is logged.
    //
    // The default is true.
    Version bool
}

func NewLogSrvCfg ¶

func NewLogSrvCfg() LogSrvCfg

NewLogSrvCfg creates a LogSrvCfg with default values.

type LogStmtCfg ¶

LogStmtCfg represents Stmt logging configuration values.

type LogStmtCfg struct {
    // Close determines whether the Stmt.Close method is logged.
    //
    // The default is true.
    Close bool

    // Exe determines whether the Stmt.Exe method is logged.
    //
    // The default is true.
    Exe bool

    // Qry determines whether the Stmt.Qry method is logged.
    //
    // The default is true.
    Qry bool

    // Bind determines whether the Stmt.bind method is logged.
    //
    // The default is true.
    Bind bool
}

func NewLogStmtCfg ¶

func NewLogStmtCfg() LogStmtCfg

NewLogStmtCfg creates a LogStmtCfg with default values.

type LogTxCfg ¶

LogTxCfg represents Tx logging configuration values.

type LogTxCfg struct {
    // Commit determines whether the Tx.Commit method is logged.
    //
    // The default is true.
    Commit bool

    // Rollback determines whether the Tx.Rollback method is logged.
    //
    // The default is true.
    Rollback bool
}

func NewLogTxCfg ¶

func NewLogTxCfg() LogTxCfg

NewLogTxCfg creates a LogTxCfg with default values.

type Logger ¶

Logger interface is for logging.

type Logger interface {
    Infof(format string, args ...interface{})
    Infoln(args ...interface{})
    Errorf(format string, args ...interface{})
    Errorln(args ...interface{})
}

type MultiErr ¶

MultiErr holds multiple errors in a single string.

type MultiErr struct {
    // contains filtered or unexported fields
}

func (MultiErr) Error ¶

func (m MultiErr) Error() string

Error returns one or more errors.

Error is a member of the 'error' interface.

type Num ¶

type Num string

type OCINum ¶

type OCINum struct {
    num.OCINum
}

func (*OCINum) FromC ¶

func (num *OCINum) FromC(x C.OCINumber)

FromC converts from the given C.OCINumber.

func (OCINum) String ¶

func (n OCINum) String() string

func (OCINum) ToC ¶

func (num OCINum) ToC(x *C.OCINumber)

ToC converts the OCINum into the given *C.OCINumber.

func (OCINum) Value ¶

func (n OCINum) Value() (driver.Value, error)

Value returns the driver.Value as required by database/sql. So OCINum is allowed as a parameter to Scan.

type ORAError ¶

type ORAError struct {
    // contains filtered or unexported fields
}

func (ORAError) Code ¶

func (e ORAError) Code() int

func (*ORAError) Error ¶

func (e *ORAError) Error() string

type OraNum ¶

type OraNum struct {
    IsNull bool
    Value  string
}

func (OraNum) Equals ¶

func (this OraNum) Equals(other OraNum) bool

Equals returns true when the receiver and specified OraNum are both null, or when the receiver and specified OraNum are both not null and Values are equal.

func (OraNum) MarshalJSON ¶

func (this OraNum) MarshalJSON() ([]byte, error)

func (OraNum) String ¶

func (this OraNum) String() string

func (*OraNum) UnmarshalJSON ¶

func (this *OraNum) UnmarshalJSON(p []byte) error

type OraOCINum ¶

type OraOCINum struct {
    IsNull bool
    Value  num.OCINum
}

func (OraOCINum) Equals ¶

func (this OraOCINum) Equals(other OraOCINum) bool

Equals returns true when the receiver and specified OraOCINum are both null, or when the receiver and specified OraOCINum are both not null and Values are equal.

func (OraOCINum) MarshalJSON ¶

func (this OraOCINum) MarshalJSON() ([]byte, error)

func (OraOCINum) String ¶

func (this OraOCINum) String() string

func (*OraOCINum) UnmarshalJSON ¶

func (this *OraOCINum) UnmarshalJSON(p []byte) error

type Pool ¶

type Pool struct {
    sync.Mutex
    // contains filtered or unexported fields
}

func NewPool ¶

func NewPool(dsn string, size int) (*Pool, error)

NewPool returns a new session pool with default config.

func (*Pool) Close ¶

func (p *Pool) Close() (err error)

Close all idle sessions and connections.

func (*Pool) Get ¶

func (p *Pool) Get() (ses *Ses, err error)

Get a session - either an idle session, or if such does not exist, then a new session on an idle connection; if such does not exist, then a new session on a new connection.

func (*Pool) Put ¶

func (p *Pool) Put(ses *Ses)

Put the session back to the session pool. Ensure that on ses Close (eviction), srv is put back on the idle pool.

func (Pool) SetEvictDuration ¶

func (p Pool) SetEvictDuration(dur time.Duration)

Set the eviction duration to the given. Also starts eviction if not yet started.

type PoolCfg ¶

type PoolCfg struct {
    Type           PoolType
    Name           string
    Username       string
    Password       string
    Min, Max, Incr uint32
}

func DSNPool ¶

func DSNPool(str string) PoolCfg

DSNPool returns the Pool config from dsn.

type PoolType ¶

type PoolType uint8

type Raw ¶

Raw represents a nullable byte slice for RAW or LONG RAW Oracle values.

type Raw struct {
    IsNull bool
    Value  []byte
}

func (Raw) Equals ¶

func (this Raw) Equals(other Raw) bool

Equals returns true when the receiver and specified Raw are both null, or when the receiver and specified Raw are both not null and Values are equal.

func (Raw) MarshalJSON ¶

func (this Raw) MarshalJSON() ([]byte, error)

func (*Raw) UnmarshalJSON ¶

func (this *Raw) UnmarshalJSON(p []byte) error

type ResType ¶

ResType represents a result type returned by the ora.Sel method.

type ResType int

const (
    // SliceOfPtr indicates a slice of struct pointers will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    SliceOfPtr ResType = iota

    // SliceOfVal indicates a slice of structs will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    SliceOfVal

    // MapOfPtrPk indicates a map of struct pointers will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    // The map key is determined by a struct field tagged with `db:"pk"`.
    MapOfPtrPk

    // MapOfPtrFk1 indicates a map of struct pointers will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    // The map key is determined by a struct field tagged with `db:"fk1"`.
    MapOfPtrFk1

    // MapOfPtrFk2 indicates a map of struct pointers will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    // The map key is determined by a struct field tagged with `db:"fk2"`.
    MapOfPtrFk2

    // MapOfPtrFk3 indicates a map of struct pointers will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    // The map key is determined by a struct field tagged with `db:"fk3"`.
    MapOfPtrFk3

    // MapOfPtrFk4 indicates a map of struct pointers will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    // The map key is determined by a struct field tagged with `db:"fk4"`.
    MapOfPtrFk4

    // MapOfValPk indicates a map of structs will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    // The map key is determined by a struct field tagged with `db:"pk"`.
    MapOfValPk

    // MapOfValFk1 indicates a map of structs will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    // The map key is determined by a struct field tagged with `db:"fk1"`.
    MapOfValFk1

    // MapOfValFk2 indicates a map of structs will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    // The map key is determined by a struct field tagged with `db:"fk2"`.
    MapOfValFk2

    // MapOfValFk3 indicates a map of structs will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    // The map key is determined by a struct field tagged with `db:"fk3"`.
    MapOfValFk3

    // MapOfValFk4 indicates a map of structs will be returned by the ora.Sel method.
    // The struct type is specified to ora.Sel by the user.
    // The map key is determined by a struct field tagged with `db:"fk4"`.
    MapOfValFk4
)

type Rset ¶

Rset represents a result set used to obtain Go values from a SQL select statement.

Opening and closing a Rset is managed internally. Rset doesn't have an Open method or Close method.

type Rset struct {
    sync.RWMutex

    Row     []interface{}
    Columns []Column
    // contains filtered or unexported fields
}

func (*Rset) Err ¶

func (rset *Rset) Err() error

Err returns the last error of the reesult set.

func (*Rset) Exhaust ¶

func (rset *Rset) Exhaust()

Exhaust will cycle to the end of the Rset, to autoclose it.

func (*Rset) IsOpen ¶

func (rset *Rset) IsOpen() bool

IsOpen returns true when a result set is open; otherwise, false.

func (*Rset) Len ¶

func (rset *Rset) Len() int

Len returns the number of rows retrieved.

func (*Rset) Name ¶

func (s *Rset) Name(calc func() string) string

Name sets the name to the result of calc once, then returns that result forever. (Effectively caches the result of calc().)

func (*Rset) Next ¶

func (rset *Rset) Next() bool

Next attempts to load a row of data from an Oracle buffer. True is returned when a row of data is retrieved. False is returned when no data is available.

Retrieve the loaded row from the Rset.Row field. Rset.Row is updated on each call to Next. Rset.Row is set to nil when Next returns false.

When Next returns false check Rset.Err() for any error that may have occured.

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number)", tableName))
defer stmt.Close()
stmt.Exe()

// insert records
a := make([]uint16, 5)
for n, _ := range a {
    a[n] = uint16(n)
}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
rowsAffected, _ := stmt.Exe(a)
fmt.Println(rowsAffected)

// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.U16)
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Printf("%v, ", rset.Row[0])
}

5
0, 1, 2, 3, 4,

func (*Rset) NextRow ¶

func (rset *Rset) NextRow() []interface{}

NextRow attempts to load a row from the Oracle buffer and return the row. Nil is returned when there's no data.

When NextRow returns nil check Rset.Err() for any error that may have occured.

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number, c2 varchar2(48 char), c3 char(1 byte))", tableName))
defer stmt.Close()
stmt.Exe()

// insert record
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1, c2, c3) values (7, 'go', '1')", tableName))
defer stmt.Close()
stmt.Exe()

// fetch record
stmt, _ = ses.Prep(fmt.Sprintf("select c1, c2, c3 from %v", tableName))
rset, _ := stmt.Qry()
row := rset.NextRow()
fmt.Printf("%v %v %v", row[0], row[1], row[2])

7 go 1

type RsetCfg ¶

RsetCfg affects the association of Oracle select-list columns to Go types.

Though it is unlucky, an empty RsetCfg is unusable! Please use NewRsetCfg().

RsetCfg is immutable, so all Set... methods returns a new copy!

type RsetCfg struct {

    // TrueRune is rune a Go bool true value from SQL select-list character column.
    //
    // The is default is '1'.
    TrueRune rune

    // Err is the error from the last Set... method.
    Err error
    // contains filtered or unexported fields
}

func NewRsetCfg ¶

func NewRsetCfg() RsetCfg

NewRsetCfg returns a RsetCfg with default values.

func (RsetCfg) BinaryDouble ¶

func (c RsetCfg) BinaryDouble() GoColumnType

BinaryDouble returns a GoColumnType associated to an Oracle select-list BINARY_DOUBLE column.

The default is F64.

BinaryDouble is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, BinaryDouble is used.

func (RsetCfg) BinaryFloat ¶

func (c RsetCfg) BinaryFloat() GoColumnType

BinaryFloat returns a GoColumnType associated to an Oracle select-list BINARY_FLOAT column.

The default for the database/sql package is F64.

The default for the ora package is F32.

BinaryFloat is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, BinaryFloat is used.

func (RsetCfg) Blob ¶

func (c RsetCfg) Blob() GoColumnType

Blob returns a GoColumnType associated to an Oracle select-list BLOB column.

The default is Bits.

Blob is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, Blob is used.

func (RsetCfg) Char ¶

func (c RsetCfg) Char() GoColumnType

Char returns a GoColumnType associated to an Oracle select-list CHAR column and NCHAR column.

The default is S.

Char is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, Char is used.

func (RsetCfg) Char1 ¶

func (c RsetCfg) Char1() GoColumnType

Char1 returns a GoColumnType associated to an Oracle select-list CHAR column with length 1 and NCHAR column with length 1.

The default is B.

Char1 is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, Char1 is used.

func (RsetCfg) Clob ¶

func (c RsetCfg) Clob() GoColumnType

Clob returns a GoColumnType associated to an Oracle select-list CLOB column and NCLOB column.

The default is S.

Clob is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, Clob is used.

func (RsetCfg) Date ¶

func (c RsetCfg) Date() GoColumnType

Date returns a GoColumnType associated to an Oracle select-list DATE column.

The default is T.

Date is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, Date is used.

func (RsetCfg) Float ¶

func (c RsetCfg) Float() GoColumnType

Float returns a GoColumnType associated to an Oracle select-list FLOAT column.

The default is F64.

Float is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, Float is used.

func (RsetCfg) IsZero ¶

func (c RsetCfg) IsZero() bool

func (RsetCfg) Long ¶

func (c RsetCfg) Long() GoColumnType

Long returns a GoColumnType associated to an Oracle select-list LONG column.

The default is S.

Long is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, Long is used.

func (RsetCfg) LongRaw ¶

func (c RsetCfg) LongRaw() GoColumnType

LongRaw returns a GoColumnType associated to an Oracle select-list LONG RAW column.

The default is Bits.

LongRaw is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, LongRaw is used.

func (RsetCfg) NumberBigFloat ¶

func (c RsetCfg) NumberBigFloat() GoColumnType

NumberBigFloat returns a GoColumnType associated to an Oracle select-list NUMBER column defined with a scale greater than zero and precision unknown or > 15.

The default is N.

NumberBugFloat is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, NumberFloat is used.

func (RsetCfg) NumberBigInt ¶

func (c RsetCfg) NumberBigInt() GoColumnType

NumberBigInt returns a GoColumnType associated to an Oracle select-list NUMBER column defined with scale zero and precision unknown or > 19.

The default is N.

The database/sql package uses NumberBigInt.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, NumberInt is used.

func (RsetCfg) NumberFloat ¶

func (c RsetCfg) NumberFloat() GoColumnType

NumberFloat returns a GoColumnType associated to an Oracle select-list NUMBER column defined with a scale greater than zero.

The default is F64.

NumberFloat is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, NumberFloat is used.

func (RsetCfg) NumberInt ¶

func (c RsetCfg) NumberInt() GoColumnType

NumberInt returns a GoColumnType associated to an Oracle select-list NUMBER column defined with scale zero and precision <= 19.

The default is I64.

The database/sql package uses NumberInt.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, NumberInt is used.

func (RsetCfg) Raw ¶

func (c RsetCfg) Raw() GoColumnType

Raw returns a GoColumnType associated to an Oracle select-list RAW column.

The default is Bits.

Raw is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, Raw is used.

func (RsetCfg) SetBinaryDouble ¶

func (c RsetCfg) SetBinaryDouble(gct GoColumnType) RsetCfg

SetBinaryDouble sets a GoColumnType associated to an Oracle select-list BINARY_DOUBLE column.

Valid values are I64, I32, I16, I8, U64, U32, U16, U8, F64, F32, OraI64, OraI32, OraI16, OraI8, OraU64, OraU32, OraU16, OraU8, OraF64, OraF32, N, OraN.

Returns an error if a non-numeric GoColumnType is specified.

func (RsetCfg) SetBinaryFloat ¶

func (c RsetCfg) SetBinaryFloat(gct GoColumnType) RsetCfg

SetBinaryFloat sets a GoColumnType associated to an Oracle select-list BINARY_FLOAT column.

Valid values are I64, I32, I16, I8, U64, U32, U16, U8, F64, F32, OraI64, OraI32, OraI16, OraI8, OraU64, OraU32, OraU16, OraU8, OraF64, OraF32, Num, OraNum.

Returns an error if a non-numeric GoColumnType is specified.

func (RsetCfg) SetBlob ¶

func (c RsetCfg) SetBlob(gct GoColumnType) RsetCfg

SetBlob sets a GoColumnType associated to an Oracle select-list BLOB column.

Valid values are Bits and OraBits.

Returns an error if a non-string GoColumnType is specified.

func (RsetCfg) SetChar ¶

func (c RsetCfg) SetChar(gct GoColumnType) RsetCfg

SetChar sets a GoColumnType associated to an Oracle select-list CHAR column and NCHAR column.

Valid values are S and OraS.

Returns an error if a non-string GoColumnType is specified.

func (RsetCfg) SetChar1 ¶

func (c RsetCfg) SetChar1(gct GoColumnType) RsetCfg

SetChar1 sets a GoColumnType associated to an Oracle select-list CHAR column with length 1 and NCHAR column with length 1.

Valid values are B, OraB, S and OraS.

Returns an error if a non-bool or non-string GoColumnType is specified.

func (RsetCfg) SetClob ¶

func (c RsetCfg) SetClob(gct GoColumnType) RsetCfg

SetClob sets a GoColumnType associated to an Oracle select-list CLOB column and NCLOB column.

Valid values are S and OraS.

Returns an error if a non-string GoColumnType is specified.

func (RsetCfg) SetDate ¶

func (c RsetCfg) SetDate(gct GoColumnType) RsetCfg

SetDate sets a GoColumnType associated to an Oracle select-list DATE column.

Valid values are T and OraT.

Returns an error if a non-time GoColumnType is specified.

func (RsetCfg) SetFloat ¶

func (c RsetCfg) SetFloat(gct GoColumnType) RsetCfg

SetFloat sets a GoColumnType associated to an Oracle select-list FLOAT column.

Valid values are I64, I32, I16, I8, U64, U32, U16, U8, F64, F32, OraI64, OraI32, OraI16, OraI8, OraU64, OraU32, OraU16, OraU8, OraF64, OraF32, N, OraN.

Returns an error if a non-numeric GoColumnType is specified.

func (RsetCfg) SetLong ¶

func (c RsetCfg) SetLong(gct GoColumnType) RsetCfg

SetLong sets a GoColumnType associated to an Oracle select-list LONG column.

Valid values are S and OraS.

Returns an error if a non-string GoColumnType is specified.

func (RsetCfg) SetLongRaw ¶

func (c RsetCfg) SetLongRaw(gct GoColumnType) RsetCfg

SetLongRaw sets a GoColumnType associated to an Oracle select-list LONG RAW column.

Valid values are Bits and OraBits.

Returns an error if a non-string GoColumnType is specified.

func (RsetCfg) SetNumberBigFloat ¶

func (c RsetCfg) SetNumberBigFloat(gct GoColumnType) RsetCfg

SetNumberBigFloat sets a GoColumnType associated to an Oracle select-list NUMBER column defined with a scale greater than zero and precision unkonw or > 15.

Valid values are I64, I32, I16, I8, U64, U32, U16, U8, F64, F32, OraI64, OraI32, OraI16, OraI8, OraU64, OraU32, OraU16, OraU8, OraF64, OraF32, N, OraN.

Returns an error if a non-numeric GoColumnType is specified.

func (RsetCfg) SetNumberBigInt ¶

func (c RsetCfg) SetNumberBigInt(gct GoColumnType) RsetCfg

SetNumberBigInt sets a GoColumnType associated to an Oracle select-list NUMBER column defined with scale zero and precision unknown or > 19.

Valid values are I64, I32, I16, I8, U64, U32, U16, U8, F64, F32, OraI64, OraI32, OraI16, OraI8, OraU64, OraU32, OraU16, OraU8, OraF64, OraF32, N, OraN.

Returns an error if a non-numeric GoColumnType is specified.

func (RsetCfg) SetNumberFloat ¶

func (c RsetCfg) SetNumberFloat(gct GoColumnType) RsetCfg

SetNumberFloat sets a GoColumnType associated to an Oracle select-list NUMBER column defined with a scale greater than zero and precision <= 15.

Valid values are I64, I32, I16, I8, U64, U32, U16, U8, F64, F32, OraI64, OraI32, OraI16, OraI8, OraU64, OraU32, OraU16, OraU8, OraF64, OraF32, N, OraN.

Returns an error if a non-numeric GoColumnType is specified.

func (RsetCfg) SetNumberInt ¶

func (c RsetCfg) SetNumberInt(gct GoColumnType) RsetCfg

SetNumberInt sets a GoColumnType associated to an Oracle select-list NUMBER column defined with scale zero and precision <= 19.

Valid values are I64, I32, I16, I8, U64, U32, U16, U8, F64, F32, OraI64, OraI32, OraI16, OraI8, OraU64, OraU32, OraU16, OraU8, OraF64, OraF32, N, OraN.

Returns an error if a non-numeric GoColumnType is specified.

func (RsetCfg) SetRaw ¶

func (c RsetCfg) SetRaw(gct GoColumnType) RsetCfg

SetRaw sets a GoColumnType associated to an Oracle select-list RAW column.

Valid values are Bits and OraBits.

Returns an error if a non-string GoColumnType is specified.

func (RsetCfg) SetTimestamp ¶

func (c RsetCfg) SetTimestamp(gct GoColumnType) RsetCfg

SetTimestamp sets a GoColumnType associated to an Oracle select-list TIMESTAMP column.

Valid values are T and OraT.

Returns an error if a non-time GoColumnType is specified.

func (RsetCfg) SetTimestampLtz ¶

func (c RsetCfg) SetTimestampLtz(gct GoColumnType) RsetCfg

SetTimestampLtz sets a GoColumnType associated to an Oracle select-list TIMESTAMP WITH LOCAL TIME ZONE column.

Valid values are T and OraT.

Returns an error if a non-time GoColumnType is specified.

func (RsetCfg) SetTimestampTz ¶

func (c RsetCfg) SetTimestampTz(gct GoColumnType) RsetCfg

SetTimestampTz sets a GoColumnType associated to an Oracle select-list TIMESTAMP WITH TIME ZONE column.

Valid values are T and OraT.

Returns an error if a non-time GoColumnType is specified.

func (RsetCfg) SetVarchar ¶

func (c RsetCfg) SetVarchar(gct GoColumnType) RsetCfg

SetVarchar sets a GoColumnType associated to an Oracle select-list VARCHAR column, VARCHAR2 column and NVARCHAR2 column.

Valid values are S and OraS.

Returns an error if a non-string GoColumnType is specified.

func (RsetCfg) Timestamp ¶

func (c RsetCfg) Timestamp() GoColumnType

Timestamp returns a GoColumnType associated to an Oracle select-list TIMESTAMP column.

The default is T.

Timestamp is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, Timestamp is used.

func (RsetCfg) TimestampLtz ¶

func (c RsetCfg) TimestampLtz() GoColumnType

TimestampLtz returns a GoColumnType associated to an Oracle select-list TIMESTAMP WITH LOCAL TIME ZONE column.

The default is T.

TimestampLtz is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, TimestampLtz is used.

func (RsetCfg) TimestampTz ¶

func (c RsetCfg) TimestampTz() GoColumnType

TimestampTz returns a GoColumnType associated to an Oracle select-list TIMESTAMP WITH TIME ZONE column.

The default is T.

TimestampTz is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, TimestampTz is used.

func (RsetCfg) Varchar ¶

func (c RsetCfg) Varchar() GoColumnType

Varchar returns a GoColumnType associated to an Oracle select-list VARCHAR column, VARCHAR2 column and NVARCHAR2 column.

The default is S.

Varchar is used by the database/sql package.

When using the ora package directly, custom GoColumnType associations may be specified to the Ses.Prep method. If no custom GoColumnType association is specified, Varchar is used.

type Ses ¶

Ses is an Oracle session associated with a server.

type Ses struct {
    sync.RWMutex
    // contains filtered or unexported fields
}

func (*Ses) Break ¶

func (ses *Ses) Break() (err error)

Break stops the currently running OCI function.

func (*Ses) Cfg ¶

func (ses *Ses) Cfg() SesCfg

Cfg returns the Ses's SesCfg, or it's Srv's, if not set. If the ses.srv.env is the PkgSqlEnv, that will override StmtCfg!

func (*Ses) Close ¶

func (ses *Ses) Close() (err error)

Close ends a session on an Oracle server.

Any open statements associated with the session are closed.

Calling Close will cause Ses.IsOpen to return false. Once closed, a session cannot be re-opened. Call Srv.OpenSes to open a new session.

func (*Ses) Env ¶

func (ses *Ses) Env() *Env

func (*Ses) Ins ¶

func (ses *Ses) Ins(tbl string, columnPairs ...interface{}) (err error)

Ins composes, prepares and executes a sql INSERT statement returning a possible error.

Ins offers convenience when specifying a long list of sql columns.

Ins expects at least two column name-value pairs where the last pair will be a part of a sql RETURNING clause. The last column name is expected to be an identity column returning an Oracle-generated value. The last value specified to the variadic parameter 'columnPairs' is expected to be a pointer capable of receiving the identity value.

env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()
tableName := tableName()
ident := "DEFAULT 1"
if ver, _ := srv.Version(); strings.Contains(ver, " 12.") {
    ident = "GENERATED ALWAYS AS IDENTITY (START WITH 1 INCREMENT BY 1)"
}
ses.PrepAndExe(fmt.Sprintf("CREATE TABLE %v "+
    "(C1 NUMBER(20,0) "+ident+", C2 NUMBER(20,10), C3 NUMBER(20,10), "+
    "C4 NUMBER(20,10), C5 NUMBER(20,10), C6 NUMBER(20,10), "+
    "C7 NUMBER(20,10), C8 NUMBER(20,10), C9 NUMBER(20,10), "+
    "C10 NUMBER(20,10), C11 NUMBER(20,10), C12 NUMBER(20,10), "+
    "C13 NUMBER(20,10), C14 NUMBER(20,10), C15 NUMBER(20,10), "+
    "C16 NUMBER(20,10), C17 NUMBER(20,10), C18 NUMBER(20,10), "+
    "C19 NUMBER(20,10), C20 NUMBER(20,10), C21 NUMBER(20,10))", tableName))
e := &testEntity{}
e.C2 = 2.2
e.C3 = 3
e.C4 = 4
e.C5 = 5
e.C6 = 6
e.C7 = 7
e.C8 = 8
e.C9 = 9
e.C10 = 10
e.C11 = 11.11
e.C12 = 12.12
e.C13 = 13
e.C14 = 14
e.C15 = 15
e.C16 = 16
e.C17 = 17
e.C18 = 18
e.C19 = 19
e.C20 = 20
e.C21 = 21.21
ses.Ins(tableName,
    "C2", e.C2,
    "C3", e.C3,
    "C4", e.C4,
    "C5", e.C5,
    "C6", e.C6,
    "C7", e.C7,
    "C8", e.C8,
    "C9", e.C9,
    "C10", e.C10,
    "C11", e.C11,
    "C12", e.C12,
    "C13", e.C13,
    "C14", e.C14,
    "C15", e.C15,
    "C16", e.C16,
    "C17", e.C17,
    "C18", e.C18,
    "C19", e.C19,
    "C20", e.C20,
    "C21", e.C21,
    "C1", &e.C1)
fmt.Println(e.C1)

1

func (*Ses) IsOpen ¶

func (ses *Ses) IsOpen() bool

IsOpen returns true when a session is open; otherwise, false.

Calling Close will cause Ses.IsOpen to return false. Once closed, a session cannot be re-opened. Call Srv.OpenSes to open a new session.

func (*Ses) Name ¶

func (s *Ses) Name(calc func() string) string

Name sets the name to the result of calc once, then returns that result forever. (Effectively caches the result of calc().)

func (*Ses) NumStmt ¶

func (ses *Ses) NumStmt() int

NumStmt returns the number of open Oracle statements.

func (*Ses) NumTx ¶

func (ses *Ses) NumTx() int

NumTx returns the number of open Oracle transactions.

func (*Ses) Ping ¶

func (ses *Ses) Ping() (err error)

Ping returns nil when an Oracle server is contacted; otherwise, an error.

func (*Ses) Prep ¶

func (ses *Ses) Prep(sql string, gcts ...GoColumnType) (stmt *Stmt, err error)

Prep prepares a sql statement returning a *Stmt and possible error.

func (*Ses) PrepAndExe ¶

func (ses *Ses) PrepAndExe(sql string, params ...interface{}) (rowsAffected uint64, err error)

PrepAndExe prepares and executes a SQL statement returning the number of rows affected and a possible error, using Exe, calling in batch for arrays.

WARNING: just as sql.QueryRow, the prepared statement is closed right after execution, with all its siblings (Lobs, Rsets...)!

So if you want to retrieve and use such objects, you have to first Prep, then Exe separately (and close the Stmt returned by Prep after finishing with those objects).

env, _ := ora.OpenEnv()
defer env.Close()
srv, err := env.OpenSrv(testSrvCfg)
if err != nil {
    fmt.Fprintf(os.Stderr, "cannot connect to %q: %v", dbName(), err)
    return
}
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()
tableName := tableName()
ses.PrepAndExe(fmt.Sprintf("CREATE TABLE %v (C1 NUMBER)", tableName))
rowsAffected, _ := ses.PrepAndExe(fmt.Sprintf("INSERT INTO %v (C1) VALUES (3)", tableName))
fmt.Println(rowsAffected)

1

func (*Ses) PrepAndExeP ¶

func (ses *Ses) PrepAndExeP(sql string, params ...interface{}) (rowsAffected uint64, err error)

PrepAndExeP prepares and executes a SQL statement returning the number of rows affected and a possible error, using ExeP, so passing arrays as is.

func (*Ses) PrepAndQry ¶

func (ses *Ses) PrepAndQry(sql string, params ...interface{}) (rset *Rset, err error)

PrepAndQry prepares a SQL statement and queries an Oracle server returning an *Rset and a possible error.

If an error occurs during Prep or Qry a nil *Rset will be returned.

The *Stmt internal to this method is automatically closed when the *Rset retrieves all rows or returns an error.

env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()
tableName := tableName()
ses.PrepAndExe(fmt.Sprintf("CREATE TABLE %v (C1 NUMBER)", tableName))
ses.PrepAndExe(fmt.Sprintf("INSERT INTO %v (C1) VALUES (3)", tableName))
rset, _ := ses.PrepAndQry(fmt.Sprintf("SELECT C1 FROM %v", tableName))
row := rset.NextRow()
fmt.Println(row[0])

3

func (*Ses) Sel ¶

func (ses *Ses) Sel(sqlFrom string, columnPairs ...interface{}) (rset *Rset, err error)

Sel composes, prepares and queries a sql SELECT statement returning an *ora.Rset and possible error.

Sel offers convenience when specifying a long list of sql columns with non-default GoColumnTypes.

Specify a sql FROM clause with one or more pairs of sql column name-GoColumnType pairs. The FROM clause may have additional SQL clauses such as WHERE, HAVING, etc.

env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ident := "DEFAULT 1"
if ver, _ := srv.Version(); strings.Contains(ver, " 12.") {
    ident = " GENERATED ALWAYS AS IDENTITY (START WITH 1 INCREMENT BY 1)"
}
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()
tableName := tableName()
ses.PrepAndExe(fmt.Sprintf("CREATE TABLE %v "+
    "(C1 NUMBER(20,0) "+ident+","+
    "C2 NUMBER(20,10), C3 NUMBER(20,10), "+
    "C4 NUMBER(20,10), C5 NUMBER(20,10), C6 NUMBER(20,10), "+
    "C7 NUMBER(20,10), C8 NUMBER(20,10), C9 NUMBER(20,10), "+
    "C10 NUMBER(20,10), C11 NUMBER(20,10), C12 NUMBER(20,10), "+
    "C13 NUMBER(20,10), C14 NUMBER(20,10), C15 NUMBER(20,10), "+
    "C16 NUMBER(20,10), C17 NUMBER(20,10), C18 NUMBER(20,10), "+
    "C19 NUMBER(20,10), C20 NUMBER(20,10), C21 NUMBER(20,10))", tableName))
e := &testEntity{}
e.C2 = 2.2
e.C3 = 3
e.C4 = 4
e.C5 = 5
e.C6 = 6
e.C7 = 7
e.C8 = 8
e.C9 = 9
e.C10 = 10
e.C11 = 11.11
e.C12 = 12.12
e.C13 = 13
e.C14 = 14
e.C15 = 15
e.C16 = 16
e.C17 = 17
e.C18 = 18
e.C19 = 19
e.C20 = 20
e.C21 = 21.21
ses.Ins(tableName,
    "C2", e.C2,
    "C3", e.C3,
    "C4", e.C4,
    "C5", e.C5,
    "C6", e.C6,
    "C7", e.C7,
    "C8", e.C8,
    "C9", e.C9,
    "C10", e.C10,
    "C11", e.C11,
    "C12", e.C12,
    "C13", e.C13,
    "C14", e.C14,
    "C15", e.C15,
    "C16", e.C16,
    "C17", e.C17,
    "C18", e.C18,
    "C19", e.C19,
    "C20", e.C20,
    "C21", e.C21,
    "C1", &e.C1)
rset, _ := ses.Sel(tableName,
    "C1", ora.U64,
    "C2", ora.F64,
    "C3", ora.I8,
    "C4", ora.I16,
    "C5", ora.I32,
    "C6", ora.I64,
    "C7", ora.U8,
    "C8", ora.U16,
    "C9", ora.U32,
    "C10", ora.U64,
    "C11", ora.F32,
    "C12", ora.F64,
    "C13", ora.I8,
    "C14", ora.I16,
    "C15", ora.I32,
    "C16", ora.I64,
    "C17", ora.U8,
    "C18", ora.U16,
    "C19", ora.U32,
    "C20", ora.U64,
    "C21", ora.F32)
for rset.Next() {
    for n := 0; n < len(rset.Row); n++ {
        fmt.Printf("R%v %v\n", n, rset.Row[n])
    }
}

R0 1
R1 2.2
R2 3
R3 4
R4 5
R5 6
R6 7
R7 8
R8 9
R9 10
R10 11.11
R11 12.120000000000001
R12 13
R13 14
R14 15
R15 16
R16 17
R17 18
R18 19
R19 20
R20 21.21

func (*Ses) SetAction ¶

func (ses *Ses) SetAction(module, action string) error

SetAction sets the MODULE and ACTION attribute of the session.

func (*Ses) SetCfg ¶

func (ses *Ses) SetCfg(cfg SesCfg)

func (*Ses) StartTx ¶

func (ses *Ses) StartTx(opts ...TxOption) (tx *Tx, err error)

StartTx starts an Oracle transaction returning a *Tx and possible error.

func (*Ses) Timezone ¶

func (ses *Ses) Timezone() (*time.Location, error)

Timezone return the current session's timezone.

func (*Ses) Upd ¶

func (ses *Ses) Upd(tbl string, columnPairs ...interface{}) (err error)

Upd composes, prepares and executes a sql UPDATE statement returning a possible error.

Upd offers convenience when specifying a long list of sql columns.

env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()
tableName := tableName()
ident := "DEFAULT 1"
if ver, _ := srv.Version(); strings.Contains(ver, " 12.") {
    ident = "GENERATED ALWAYS AS IDENTITY (START WITH 1 INCREMENT BY 1)"
}
ses.PrepAndExe(fmt.Sprintf("CREATE TABLE %v "+
    "(C1 NUMBER(20,0) "+ident+", C2 NUMBER(20,10), C3 NUMBER(20,10), "+
    "C4 NUMBER(20,10), C5 NUMBER(20,10), C6 NUMBER(20,10), "+
    "C7 NUMBER(20,10), C8 NUMBER(20,10), C9 NUMBER(20,10), "+
    "C10 NUMBER(20,10), C11 NUMBER(20,10), C12 NUMBER(20,10), "+
    "C13 NUMBER(20,10), C14 NUMBER(20,10), C15 NUMBER(20,10), "+
    "C16 NUMBER(20,10), C17 NUMBER(20,10), C18 NUMBER(20,10), "+
    "C19 NUMBER(20,10), C20 NUMBER(20,10), C21 NUMBER(20,10))", tableName))
e := &testEntity{}
e.C2 = 2.2
e.C3 = 3
e.C4 = 4
e.C5 = 5
e.C6 = 6
e.C7 = 7
e.C8 = 8
e.C9 = 9
e.C10 = 10
e.C11 = 11.11
e.C12 = 12.12
e.C13 = 13
e.C14 = 14
e.C15 = 15
e.C16 = 16
e.C17 = 17
e.C18 = 18
e.C19 = 19
e.C20 = 20
e.C21 = 21.21
ses.Ins(tableName,
    "C2", e.C2,
    "C3", e.C3,
    "C4", e.C4,
    "C5", e.C5,
    "C6", e.C6,
    "C7", e.C7,
    "C8", e.C8,
    "C9", e.C9,
    "C10", e.C10,
    "C11", e.C11,
    "C12", e.C12,
    "C13", e.C13,
    "C14", e.C14,
    "C15", e.C15,
    "C16", e.C16,
    "C17", e.C17,
    "C18", e.C18,
    "C19", e.C19,
    "C20", e.C20,
    "C21", e.C21,
    "C1", &e.C1)
err := ses.Upd(tableName,
    "C2", e.C2*2,
    "C3", e.C3*2,
    "C4", e.C4*2,
    "C5", e.C5*2,
    "C6", e.C6*2,
    "C7", e.C7*2,
    "C8", e.C8*2,
    "C9", e.C9*2,
    "C10", e.C10*2,
    "C11", e.C11*2,
    "C12", e.C12*2,
    "C13", e.C13*2,
    "C14", e.C14*2,
    "C15", e.C15*2,
    "C16", e.C16*2,
    "C17", e.C17*2,
    "C18", e.C18*2,
    "C19", e.C19*2,
    "C20", e.C20*2,
    "C21", e.C21*2,
    "C1", e.C1)
if err == nil {
    fmt.Println("success")
}

success

type SesCfg ¶

type SesCfg struct {
    Username string
    Password string
    Mode     SessionMode

    StmtCfg
}

func NewSesCfg ¶

func NewSesCfg() SesCfg

func (SesCfg) IsZero ¶

func (c SesCfg) IsZero() bool

func (SesCfg) SetBinaryDouble ¶

func (c SesCfg) SetBinaryDouble(gct GoColumnType) SesCfg

func (SesCfg) SetBinaryFloat ¶

func (c SesCfg) SetBinaryFloat(gct GoColumnType) SesCfg

func (SesCfg) SetBlob ¶

func (c SesCfg) SetBlob(gct GoColumnType) SesCfg

func (SesCfg) SetByteSlice ¶

func (c SesCfg) SetByteSlice(gct GoColumnType) SesCfg

func (SesCfg) SetChar ¶

func (c SesCfg) SetChar(gct GoColumnType) SesCfg

func (SesCfg) SetChar1 ¶

func (c SesCfg) SetChar1(gct GoColumnType) SesCfg

func (SesCfg) SetClob ¶

func (c SesCfg) SetClob(gct GoColumnType) SesCfg

func (SesCfg) SetDate ¶

func (c SesCfg) SetDate(gct GoColumnType) SesCfg

func (SesCfg) SetFloat ¶

func (c SesCfg) SetFloat(gct GoColumnType) SesCfg

func (SesCfg) SetLobBufferSize ¶

func (c SesCfg) SetLobBufferSize(size int) SesCfg

func (SesCfg) SetLong ¶

func (c SesCfg) SetLong(gct GoColumnType) SesCfg

func (SesCfg) SetLongBufferSize ¶

func (c SesCfg) SetLongBufferSize(size uint32) SesCfg

func (SesCfg) SetLongRaw ¶

func (c SesCfg) SetLongRaw(gct GoColumnType) SesCfg

func (SesCfg) SetLongRawBufferSize ¶

func (c SesCfg) SetLongRawBufferSize(size uint32) SesCfg

func (SesCfg) SetNumberBigFloat ¶

func (c SesCfg) SetNumberBigFloat(gct GoColumnType) SesCfg

func (SesCfg) SetNumberBigInt ¶

func (c SesCfg) SetNumberBigInt(gct GoColumnType) SesCfg

func (SesCfg) SetNumberFloat ¶

func (c SesCfg) SetNumberFloat(gct GoColumnType) SesCfg

func (SesCfg) SetNumberInt ¶

func (c SesCfg) SetNumberInt(gct GoColumnType) SesCfg

func (SesCfg) SetPrefetchMemorySize ¶

func (c SesCfg) SetPrefetchMemorySize(prefetchMemorySize uint32) SesCfg

func (SesCfg) SetPrefetchRowCount ¶

func (c SesCfg) SetPrefetchRowCount(prefetchRowCount uint32) SesCfg

func (SesCfg) SetRaw ¶

func (c SesCfg) SetRaw(gct GoColumnType) SesCfg

func (SesCfg) SetStmtCfg ¶

func (cfg SesCfg) SetStmtCfg(stmtCfg StmtCfg) SesCfg

func (SesCfg) SetStringPtrBufferSize ¶

func (c SesCfg) SetStringPtrBufferSize(size int) SesCfg

func (SesCfg) SetTimestamp ¶

func (c SesCfg) SetTimestamp(gct GoColumnType) SesCfg

func (SesCfg) SetTimestampLtz ¶

func (c SesCfg) SetTimestampLtz(gct GoColumnType) SesCfg

func (SesCfg) SetTimestampTz ¶

func (c SesCfg) SetTimestampTz(gct GoColumnType) SesCfg

func (SesCfg) SetVarchar ¶

func (c SesCfg) SetVarchar(gct GoColumnType) SesCfg

type SesPool ¶

type SesPool struct {
    // contains filtered or unexported fields
}

func (*SesPool) Close ¶

func (p *SesPool) Close() error

func (*SesPool) Get ¶

func (p *SesPool) Get() (*Ses, error)

Get a session from an idle Srv.

func (*SesPool) Put ¶

func (p *SesPool) Put(ses *Ses)

Put the session back to the session pool.

func (SesPool) SetEvictDuration ¶

func (p SesPool) SetEvictDuration(dur time.Duration)

Set the eviction duration to the given. Also starts eviction if not yet started.

type SessionMode ¶

type SessionMode uint8

func DSNMode ¶

func DSNMode(str string) SessionMode

DSNMode returns the SessionMode (SysDefault/SysDba/SysOper).

type Srv ¶

Srv represents an Oracle server.

type Srv struct {
    sync.RWMutex
    // contains filtered or unexported fields
}

func (*Srv) Cfg ¶

func (srv *Srv) Cfg() SrvCfg

Cfg returns the Srv's SrvCfg, or it's Env's, if not set. If the env is the PkgSqlEnv, that will override StmtCfg!

func (*Srv) Close ¶

func (srv *Srv) Close() (err error)

Close disconnects from an Oracle server.

Any open sessions associated with the server are closed.

Calling Close will cause Srv.IsOpen to return false. Once closed, a server cannot be re-opened. Call Env.OpenSrv to open a new server.

func (*Srv) IsOpen ¶

func (srv *Srv) IsOpen() bool

IsOpen returns true when the server is open; otherwise, false.

Calling Close will cause Srv.IsOpen to return false. Once closed, a server cannot be re-opened. Call Env.OpenSrv to open a new server.

func (*Srv) IsUTF8 ¶

func (srv *Srv) IsUTF8() bool

IsUTF8 returns whether the DB uses AL32UTF8 encoding.

func (*Srv) Name ¶

func (s *Srv) Name(calc func() string) string

Name sets the name to the result of calc once, then returns that result forever. (Effectively caches the result of calc().)

func (*Srv) NewSesPool ¶

func (srv *Srv) NewSesPool(sesCfg SesCfg, size int) *SesPool

NewSesPool returns a session pool, which evicts the idle sessions in every minute. The pool holds at most size idle Ses. If size is zero, DefaultPoolSize will be used.

func (*Srv) NumSes ¶

func (srv *Srv) NumSes() int

NumSes returns the number of open Oracle sessions.

func (*Srv) OpenSes ¶

func (srv *Srv) OpenSes(cfg SesCfg) (ses *Ses, err error)

OpenSes opens an Oracle session returning a *Ses and possible error.

func (*Srv) SetCfg ¶

func (srv *Srv) SetCfg(cfg SrvCfg)

func (*Srv) Version ¶

func (srv *Srv) Version() (ver string, err error)

Version returns the Oracle database server version.

Version requires the server have at least one open session.

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()

// open a session before calling Version
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

version, err := srv.Version()
if version != "" && err == nil {
    fmt.Println("Received version from server")
}

Received version from server

type SrvCfg ¶

SrvCfg configures a new Srv.

type SrvCfg struct {
    // Dblink specifies an Oracle database server. Dblink is a connect string
    // or a service point.
    Dblink string

    Pool PoolCfg

    // StmtCfg configures new Stmts.
    StmtCfg
}

func (SrvCfg) IsZero ¶

func (c SrvCfg) IsZero() bool

type SrvPool ¶

type SrvPool struct {
    // contains filtered or unexported fields
}

func (*SrvPool) Close ¶

func (p *SrvPool) Close() error

func (*SrvPool) Get ¶

func (p *SrvPool) Get() (*Srv, error)

Get a connection.

func (*SrvPool) Put ¶

func (p *SrvPool) Put(srv *Srv)

Put the connection back to the idle pool.

func (SrvPool) SetEvictDuration ¶

func (p SrvPool) SetEvictDuration(dur time.Duration)

Set the eviction duration to the given. Also starts eviction if not yet started.

type Stmt ¶

Stmt represents an Oracle statement.

type Stmt struct {
    sync.RWMutex
    // contains filtered or unexported fields
}

func (*Stmt) Cfg ¶

func (stmt *Stmt) Cfg() StmtCfg

Cfg returns the Stmt's StmtCfg, or it's Ses's, if not set. If the env is the PkgSqlEnv, that will override StmtCfg!

func (*Stmt) Close ¶

func (stmt *Stmt) Close() (err error)

Close closes the SQL statement.

Calling Close will cause Stmt.IsOpen to return false. Once closed, a statement cannot be re-opened. Call Stmt.Prep to create a new statement.

func (*Stmt) Env ¶

func (stmt *Stmt) Env() *Env

func (*Stmt) Exe ¶

func (stmt *Stmt) Exe(params ...interface{}) (rowsAffected uint64, err error)

Exe executes a SQL statement on an Oracle server returning the number of rows affected and a possible error.

Slice arguments should have the same length, as they'll be called in batch mode.

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number)", tableName))
defer stmt.Close()
stmt.Exe()
// insert record
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (9)", tableName))
defer stmt.Close()
stmt.Exe()

// delete record
var value int64 = 9
stmt, _ = ses.Prep(fmt.Sprintf("delete from %v where c1 = :1", tableName))
defer stmt.Close()
rowsAffected, _ := stmt.Exe(value)
fmt.Println(rowsAffected)

1

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number)", tableName))
defer stmt.Close()
stmt.Exe()

// insert record
var value int64 = 9
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
rowsAffected, _ := stmt.Exe(value)
fmt.Println(rowsAffected)

1

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number)", tableName))
defer stmt.Close()
stmt.Exe()
// insert record
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (9)", tableName))
defer stmt.Close()
stmt.Exe()

// update record
var a int64 = 3
var b int64 = 9
stmt, _ = ses.Prep(fmt.Sprintf("update %v set c1 = :three where c1 = :nine", tableName))
defer stmt.Close()
rowsAffected, _ := stmt.Exe(a, b)
fmt.Println(rowsAffected)

1

func (*Stmt) ExeP ¶

func (stmt *Stmt) ExeP(params ...interface{}) (rowsAffected uint64, err error)

ExeP executes an (PL/)SQL statement on an Oracle server returning the number of rows affected and a possible error.

All arguments are sent as is (esp. slices).

func (*Stmt) Gcts ¶

func (stmt *Stmt) Gcts() []GoColumnType

Gcts returns a slice of GoColumnType specified by Ses.Prep or Stmt.SetGcts.

Gcts is used by a Stmt.Qry *ora.Rset to determine which Go types are mapped to a sql select-list.

func (*Stmt) IsOpen ¶

func (stmt *Stmt) IsOpen() bool

IsOpen returns true when a statement is open; otherwise, false.

Calling Close will cause Stmt.IsOpen to return false. Once closed, a statement cannot be re-opened. Call Stmt.Prep to create a new statement.

func (*Stmt) Name ¶

func (s *Stmt) Name(calc func() string) string

Name sets the name to the result of calc once, then returns that result forever. (Effectively caches the result of calc().)

func (*Stmt) NumInput ¶

func (stmt *Stmt) NumInput() int

NumInput returns the number of placeholders in a sql statement.

This returns a constant -1, as named params can be less, then positional params.

func (*Stmt) NumRset ¶

func (stmt *Stmt) NumRset() int

NumRset returns the number of open Oracle result sets.

func (*Stmt) Parse ¶

func (stmt *Stmt) Parse() (err error)

Parse the statement, and return the syntax errors - WITHOUT executing it. Rejects ALTER statements, as they're executed anyway by Oracle...

func (*Stmt) Qry ¶

func (stmt *Stmt) Qry(params ...interface{}) (*Rset, error)

Qry runs a SQL query on an Oracle server returning a *Rset and possible error.

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

cfg := ses.Cfg()
defer ses.SetCfg(cfg)
cfg = cfg.SetChar1(ora.B)
ses.SetCfg(cfg)

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number, c2 varchar2(48 char), c3 char(1 byte))", tableName))
defer stmt.Close()
stmt.Exe()
// insert record
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1, c2, c3) values (3, 'slice', '0')", tableName))
defer stmt.Close()
stmt.Exe()
// insert record
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1, c2, c3) values (7, 'map', '1')", tableName))
defer stmt.Close()
stmt.Exe()
// insert record
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1, c2, c3) values (9, 'channel', '1')", tableName))
defer stmt.Close()
stmt.Exe()

// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1, c2, c3 from %v", tableName))
defer stmt.Close()
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Printf("%v %v %v, ", rset.Row[0], rset.Row[1], rset.Row[2])
}

3 slice false, 7 map true, 9 channel true,

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number, c2 varchar2(48 char), c3 char(1 byte))", tableName))
defer stmt.Close()
stmt.Exe()
// insert record
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1, c2, c3) values (null, 'slice', '0')", tableName))
defer stmt.Close()
stmt.Exe()
// insert record
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1, c2, c3) values (7, null, '1')", tableName))
defer stmt.Close()
stmt.Exe()
// insert record
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1, c2, c3) values (9, 'channel', null)", tableName))
defer stmt.Close()
stmt.Exe()

// Specify nullable return types to the Prep method
// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1, c2, c3 from %v", tableName), ora.OraI64, ora.OraS, ora.OraB)
defer stmt.Close()
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Printf("%v %v %v, ", rset.Row[0], rset.Row[1], rset.Row[2])
}

{true 0} slice {false false}, {false 7}  {false true}, {false 9} channel {true false},

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number)", tableName))
defer stmt.Close()
stmt.Exe()
// insert record
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (9)", tableName))
defer stmt.Close()
stmt.Exe()

// Specify various numeric return types to the Prep method
// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1, c1, c1, c1, c1, c1, c1, c1, c1, c1 from %v", tableName), ora.I64, ora.I32, ora.I16, ora.I8, ora.U64, ora.U32, ora.U16, ora.U8, ora.F64, ora.F32)
defer stmt.Close()
rset, _ := stmt.Qry()
row := rset.NextRow()
fmt.Printf("%v %v %v %v %v %v %v %v %v %v",
    reflect.TypeOf(row[0]).Name(),
    reflect.TypeOf(row[1]).Name(),
    reflect.TypeOf(row[2]).Name(),
    reflect.TypeOf(row[3]).Name(),
    reflect.TypeOf(row[4]).Name(),
    reflect.TypeOf(row[5]).Name(),
    reflect.TypeOf(row[6]).Name(),
    reflect.TypeOf(row[7]).Name(),
    reflect.TypeOf(row[8]).Name(),
    reflect.TypeOf(row[9]).Name())

int64 int32 int16 int8 uint64 uint32 uint16 uint8 float64 float32

func (*Stmt) SetCfg ¶

func (stmt *Stmt) SetCfg(cfg StmtCfg)

func (*Stmt) SetGcts ¶

func (stmt *Stmt) SetGcts(gcts []GoColumnType) []GoColumnType

SetGcts sets a slice of GoColumnType used in a Stmt.Qry *ora.Rset.

SetGcts is optional.

type StmtCfg ¶

StmtCfg affects various aspects of a SQL statement.

Assign values to StmtCfg prior to calling Stmt.Exe and Stmt.Qry for the configuration values to take effect.

StmtCfg is immutable, so every Set method returns a new instance, maybe with Err set, too.

type StmtCfg struct {

    // IsAutoCommitting determines whether DML statements are automatically
    // committed.
    //
    // The default is true.
    //
    // IsAutoCommitting is not observed during a transaction.
    IsAutoCommitting bool

    // RTrimChar makes returning from CHAR colums trim the blanks (spaces)
    // from the end of the string, added by Oracle.
    //
    // The default is true.
    RTrimChar bool

    // FalseRune represents the false Go bool value sent to an Oracle server
    // during a parameter bind.
    //
    // The is default is '0'.
    FalseRune rune

    // TrueRune represents the true Go bool value sent to an Oracle server
    // during a parameter bind.
    //
    // The is default is '1'.
    TrueRune rune

    // Rset represents configuration options for an Rset struct.
    RsetCfg

    // Err is the error from the last Set... call, if there's any.
    Err error
    // contains filtered or unexported fields
}

func NewStmtCfg ¶

func NewStmtCfg() StmtCfg

NewStmtCfg returns a StmtCfg with default values.

func (StmtCfg) ByteSlice ¶

func (c StmtCfg) ByteSlice() GoColumnType

ByteSlice returns a GoColumnType associated to SQL statement []byte parameter.

The default is Bits.

ByteSlice is used by the database/sql package.

Sending a byte slice to an Oracle server as a parameter in a SQL statement requires knowing the destination column type ahead of time. Set ByteSlice to Bits if the destination column is BLOB, RAW or LONG RAW. Set ByteSlice to U8 if the destination column is NUMBER, BINARY_DOUBLE, BINARY_FLOAT or FLOAT.

func (StmtCfg) IsZero ¶

func (c StmtCfg) IsZero() bool

func (StmtCfg) LobBufferSize ¶

func (c StmtCfg) LobBufferSize() int

LobBufferSize returns the LOB buffer size in bytes used to define the sql select-column buffer size of an Oracle LOB type.

The default is 16,777,216 bytes.

The default is considered a moderate buffer where the 2GB max buffer may not be feasible on all clients.

func (StmtCfg) LongBufferSize ¶

func (c StmtCfg) LongBufferSize() uint32

LongBufferSize returns the long buffer size in bytes used to define the sql select-column buffer size of an Oracle LONG type.

The default is 16,777,216 bytes.

The default is considered a moderate buffer where the 2GB max buffer may not be feasible on all clients.

func (StmtCfg) LongRawBufferSize ¶

func (c StmtCfg) LongRawBufferSize() uint32

LongRawBufferSize returns the LONG RAW buffer size in bytes used to define the sql select-column buffer size of an Oracle LONG RAW type.

The default is 16,777,216 bytes.

The default is considered a moderate buffer where the 2GB max buffer may not be feasible on all clients.

func (StmtCfg) PrefetchMemorySize ¶

func (c StmtCfg) PrefetchMemorySize() uint32

PrefetchMemorySize returns the prefetch memory size in bytes used during a SQL select command.

The default is 134,217,728 bytes.

PrefetchMemorySize works in coordination with PrefetchRowCount. When PrefetchRowCount is set to zero only PrefetchMemorySize is used; otherwise, the minimum of PrefetchRowCount and PrefetchMemorySize is used.

func (StmtCfg) PrefetchRowCount ¶

func (c StmtCfg) PrefetchRowCount() uint32

PrefetchRowCount returns the number of rows to prefetch during a select query.

The default is 0.

PrefetchRowCount works in coordination with PrefetchMemorySize. When PrefetchRowCount is set to zero only PrefetchMemorySize is used; otherwise, the minimum of PrefetchRowCount and PrefetchMemorySize is used.

func (StmtCfg) SetBinaryDouble ¶

func (c StmtCfg) SetBinaryDouble(gct GoColumnType) StmtCfg

func (StmtCfg) SetBinaryFloat ¶

func (c StmtCfg) SetBinaryFloat(gct GoColumnType) StmtCfg

func (StmtCfg) SetBlob ¶

func (c StmtCfg) SetBlob(gct GoColumnType) StmtCfg

func (StmtCfg) SetByteSlice ¶

func (c StmtCfg) SetByteSlice(gct GoColumnType) StmtCfg

SetByteSlice sets a GoColumnType associated to SQL statement []byte parameter.

Valid values are U8 and Bits.

Returns an error if U8 or Bits is not specified.

func (StmtCfg) SetChar ¶

func (c StmtCfg) SetChar(gct GoColumnType) StmtCfg

func (StmtCfg) SetChar1 ¶

func (c StmtCfg) SetChar1(gct GoColumnType) StmtCfg

func (StmtCfg) SetClob ¶

func (c StmtCfg) SetClob(gct GoColumnType) StmtCfg

func (StmtCfg) SetDate ¶

func (c StmtCfg) SetDate(gct GoColumnType) StmtCfg

func (StmtCfg) SetFloat ¶

func (c StmtCfg) SetFloat(gct GoColumnType) StmtCfg

func (StmtCfg) SetLobBufferSize ¶

func (c StmtCfg) SetLobBufferSize(size int) StmtCfg

SetLobBufferSize sets the LOB buffer size in bytes.

The maximum is 2,147,483,642 bytes.

Returns an error if the specified size is greater than 2,147,483,642.

func (StmtCfg) SetLong ¶

func (c StmtCfg) SetLong(gct GoColumnType) StmtCfg

func (StmtCfg) SetLongBufferSize ¶

func (c StmtCfg) SetLongBufferSize(size uint32) StmtCfg

SetLongBufferSize sets the long buffer size in bytes.

The maximum is 2,147,483,642 bytes.

Returns an error if the specified size is less than 1 or greater than 2,147,483,642.

func (StmtCfg) SetLongRaw ¶

func (c StmtCfg) SetLongRaw(gct GoColumnType) StmtCfg

func (StmtCfg) SetLongRawBufferSize ¶

func (c StmtCfg) SetLongRawBufferSize(size uint32) StmtCfg

SetLongRawBufferSize sets the LONG RAW buffer size in bytes.

The maximum is 2,147,483,642 bytes.

Returns an error if the specified size is greater than 2,147,483,642.

func (StmtCfg) SetNumberBigFloat ¶

func (c StmtCfg) SetNumberBigFloat(gct GoColumnType) StmtCfg

func (StmtCfg) SetNumberBigInt ¶

func (c StmtCfg) SetNumberBigInt(gct GoColumnType) StmtCfg

func (StmtCfg) SetNumberFloat ¶

func (c StmtCfg) SetNumberFloat(gct GoColumnType) StmtCfg

func (StmtCfg) SetNumberInt ¶

func (c StmtCfg) SetNumberInt(gct GoColumnType) StmtCfg

func (StmtCfg) SetPrefetchMemorySize ¶

func (c StmtCfg) SetPrefetchMemorySize(prefetchMemorySize uint32) StmtCfg

SetPrefetchMemorySize sets the prefetch memory size in bytes used during a SQL select command.

func (StmtCfg) SetPrefetchRowCount ¶

func (c StmtCfg) SetPrefetchRowCount(prefetchRowCount uint32) StmtCfg

SetPrefetchRowCount sets the number of rows to prefetch during a select query.

func (StmtCfg) SetRaw ¶

func (c StmtCfg) SetRaw(gct GoColumnType) StmtCfg

func (StmtCfg) SetStringPtrBufferSize ¶

func (c StmtCfg) SetStringPtrBufferSize(size int) StmtCfg

SetStringPtrBufferSize sets the size of a buffer used to store a string during *string parameter binding and []*string parameter binding in a SQL statement.

func (StmtCfg) SetTimestamp ¶

func (c StmtCfg) SetTimestamp(gct GoColumnType) StmtCfg

func (StmtCfg) SetTimestampLtz ¶

func (c StmtCfg) SetTimestampLtz(gct GoColumnType) StmtCfg

func (StmtCfg) SetTimestampTz ¶

func (c StmtCfg) SetTimestampTz(gct GoColumnType) StmtCfg

func (StmtCfg) SetVarchar ¶

func (c StmtCfg) SetVarchar(gct GoColumnType) StmtCfg

func (StmtCfg) StringPtrBufferSize ¶

func (c StmtCfg) StringPtrBufferSize() int

StringPtrBufferSize returns the size of a buffer in bytes used to store a string during *string parameter binding and []*string parameter binding in a SQL statement.

The default is 4000 bytes.

For a *string parameter binding, you may wish to increase the size of StringPtrBufferSize depending on the Oracle column type. For VARCHAR2, NVARCHAR2, and RAW oracle columns the Oracle MAX_STRING_SIZE is usually 4000 but may be set up to 32767.

type String ¶

String is a nullable string.

type String struct {
    IsNull bool
    Value  string
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 varchar2(48 char))", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.String slice
a := make([]ora.String, 5)
a[0] = ora.String{Value: "Go is expressive, concise, clean, and efficient."}
a[1] = ora.String{Value: "Its concurrency mechanisms make it easy to"}
a[2] = ora.String{IsNull: true}
a[3] = ora.String{Value: "It's a fast, statically typed, compiled"}
a[4] = ora.String{Value: "One of Go's key design goals is code"}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// Specify ora.OraS to Prep method to return nullable ora.String values
// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraS)
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Println(rset.Row[0])
}

Go is expressive, concise, clean, and efficient.
Its concurrency mechanisms make it easy to

It's a fast, statically typed, compiled
One of Go's key design goals is code

func (String) Equals ¶

func (this String) Equals(other String) bool

Equals returns true when the receiver and specified String are both null, or when the receiver and specified String are both not null and Values are equal.

func (String) MarshalJSON ¶

func (this String) MarshalJSON() ([]byte, error)

func (String) String ¶

func (this String) String() string

func (*String) UnmarshalJSON ¶

func (this *String) UnmarshalJSON(p []byte) error

type Time ¶

Time is a nullable time.Time.

type Time struct {
    IsNull bool
    Value  time.Time
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 timestamp)", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.Time slice
a := []ora.Time{
    {Value: time.Date(2000, 1, 2, 3, 4, 5, 0, testDbsessiontimezone)},
    {Value: time.Date(2001, 2, 3, 4, 5, 6, 0, testDbsessiontimezone)},
    {IsNull: true},
    {Value: time.Date(2003, 4, 5, 6, 7, 8, 0, testDbsessiontimezone)},
    {Value: time.Date(2004, 5, 6, 7, 8, 9, 0, testDbsessiontimezone)},
}
stmt, err := ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
if err != nil {
    log.Fatal(err)
}
defer stmt.Close()
if _, err := stmt.Exe(a); err != nil {
    log.Fatal(err)
}

//ora.Cfg().Log.Rset.BeginRow = true
//ora.Cfg().Log.Logger = lg.Log

// Specify ora.OraT to Prep method to return nullable ora.Time values
// fetch records
stmt, _ = ses.Prep("select c1 from "+tableName, ora.OraT)
rset, err := stmt.Qry()
if err != nil {
    log.Fatal(err)
}
for rset.Next() {
    t := rset.Row[0].(ora.Time)
    fmt.Printf("%v %v-%v-%v %v:%v:%v\n", t.IsNull, t.Value.Year(), t.Value.Month(), t.Value.Day(), t.Value.Hour(), t.Value.Minute(), t.Value.Second())
}

false 2000-January-2 3:4:5
false 2001-February-3 4:5:6
true 1-January-1 0:0:0
false 2003-April-5 6:7:8
false 2004-May-6 7:8:9

func (Time) Equals ¶

func (this Time) Equals(other Time) bool

Equals returns true when the receiver and specified Time are both null, or when the receiver and specified Time are both not null and Values are equal.

func (Time) MarshalJSON ¶

func (this Time) MarshalJSON() ([]byte, error)

func (*Time) UnmarshalJSON ¶

func (this *Time) UnmarshalJSON(p []byte) error

type Tx ¶

Tx represents an Oracle transaction associated with a session.

Implements the driver.Tx interface.

type Tx struct {
    sync.RWMutex
    // contains filtered or unexported fields
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number)", tableName))
defer stmt.Close()
stmt.Exe()

// rollback
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (3)", tableName))
tx, _ := ses.StartTx()
stmt.Exe()
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (5)", tableName))
stmt.Exe()
tx.Rollback()

// commit
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (7)", tableName))
tx, _ = ses.StartTx()
stmt.Exe()
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (9)", tableName))
stmt.Exe()
tx.Commit()

// check that auto commit is reenabled
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (11)", tableName))
stmt.Exe()

// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName))
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Println(rset.Row[0])
}

7
9
11

func (*Tx) Commit ¶

func (tx *Tx) Commit() (err error)

Commit commits the transaction.

Commit is a member of the driver.Tx interface.

func (*Tx) Rollback ¶

func (tx *Tx) Rollback() (err error)

Rollback rolls back a transaction.

Rollback is a member of the driver.Tx interface.

type TxOption ¶

type TxOption func(*txOption)

func TxFlags ¶

func TxFlags(flags uint32) TxOption

func TxTimeout ¶

func TxTimeout(timeout time.Duration) TxOption

type Uint16 ¶

Uint16 is a nullable uint16.

type Uint16 struct {
    IsNull bool
    Value  uint16
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number(10,0))", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.Uint16 slice
a := make([]ora.Uint16, 5)
a[0] = ora.Uint16{Value: 0}
a[1] = ora.Uint16{Value: 3}
a[2] = ora.Uint16{IsNull: true}
a[3] = ora.Uint16{Value: 7}
a[4] = ora.Uint16{Value: 9}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// Specify ora.OraU16 to Prep method to return nullable ora.Uint16 values
// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraU16)
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Println(rset.Row[0])
}

{false 0}
{false 3}
{true 0}
{false 7}
{false 9}

func (Uint16) Equals ¶

func (this Uint16) Equals(other Uint16) bool

Equals returns true when the receiver and specified Uint16 are both null, or when the receiver and specified Uint16 are both not null and Values are equal.

func (Uint16) MarshalJSON ¶

func (this Uint16) MarshalJSON() ([]byte, error)

func (*Uint16) UnmarshalJSON ¶

func (this *Uint16) UnmarshalJSON(p []byte) error

type Uint32 ¶

Uint32 is a nullable uint32.

type Uint32 struct {
    IsNull bool
    Value  uint32
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number(10,0))", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.Uint32 slice
a := make([]ora.Uint32, 5)
a[0] = ora.Uint32{Value: 0}
a[1] = ora.Uint32{Value: 3}
a[2] = ora.Uint32{IsNull: true}
a[3] = ora.Uint32{Value: 7}
a[4] = ora.Uint32{Value: 9}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// Specify ora.OraU32 to Prep method to return nullable ora.Uint32 values
// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraU32)
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Println(rset.Row[0])
}

{false 0}
{false 3}
{true 0}
{false 7}
{false 9}

func (Uint32) Equals ¶

func (this Uint32) Equals(other Uint32) bool

Equals returns true when the receiver and specified Uint32 are both null, or when the receiver and specified Uint32 are both not null and Values are equal.

func (Uint32) MarshalJSON ¶

func (this Uint32) MarshalJSON() ([]byte, error)

func (*Uint32) UnmarshalJSON ¶

func (this *Uint32) UnmarshalJSON(p []byte) error

type Uint64 ¶

Uint64 is a nullable uint64.

type Uint64 struct {
    IsNull bool
    Value  uint64
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number(10,0))", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.Uint64 slice
a := make([]ora.Uint64, 5)
a[0] = ora.Uint64{Value: 0}
a[1] = ora.Uint64{Value: 3}
a[2] = ora.Uint64{IsNull: true}
a[3] = ora.Uint64{Value: 7}
a[4] = ora.Uint64{Value: 9}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// Specify ora.OraU64 to Prep method to return nullable ora.Uint64 values
// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraU64)
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Println(rset.Row[0])
}

{false 0}
{false 3}
{true 0}
{false 7}
{false 9}

func (Uint64) Equals ¶

func (this Uint64) Equals(other Uint64) bool

Equals returns true when the receiver and specified Uint64 are both null, or when the receiver and specified Uint64 are both not null and Values are equal.

func (Uint64) MarshalJSON ¶

func (this Uint64) MarshalJSON() ([]byte, error)

func (*Uint64) UnmarshalJSON ¶

func (this *Uint64) UnmarshalJSON(p []byte) error

type Uint8 ¶

Uint8 is a nullable uint8.

type Uint8 struct {
    IsNull bool
    Value  uint8
}

// setup
env, _ := ora.OpenEnv()
defer env.Close()
srv, _ := env.OpenSrv(testSrvCfg)
defer srv.Close()
ses, _ := srv.OpenSes(testSesCfg)
defer ses.Close()

// create table
tableName := tableName()
stmt, _ := ses.Prep(fmt.Sprintf("create table %v (c1 number(10,0))", tableName))
defer stmt.Close()
stmt.Exe()

// insert ora.Uint8 slice
a := make([]ora.Uint8, 5)
a[0] = ora.Uint8{Value: 0}
a[1] = ora.Uint8{Value: 3}
a[2] = ora.Uint8{IsNull: true}
a[3] = ora.Uint8{Value: 7}
a[4] = ora.Uint8{Value: 9}
stmt, _ = ses.Prep(fmt.Sprintf("insert into %v (c1) values (:c1)", tableName))
defer stmt.Close()
stmt.Exe(a)

// Specify ora.OraU8 to Prep method to return nullable ora.Uint8 values
// fetch records
stmt, _ = ses.Prep(fmt.Sprintf("select c1 from %v", tableName), ora.OraU8)
rset, _ := stmt.Qry()
for rset.Next() {
    fmt.Println(rset.Row[0])
}

{false 0}
{false 3}
{true 0}
{false 7}
{false 9}

func (Uint8) Equals ¶

func (this Uint8) Equals(other Uint8) bool

Equals returns true when the receiver and specified Uint8 are both null, or when the receiver and specified Uint8 are both not null and Values are equal.

func (Uint8) MarshalJSON ¶

func (this Uint8) MarshalJSON() ([]byte, error)

func (*Uint8) UnmarshalJSON ¶

func (this *Uint8) UnmarshalJSON(p []byte) error

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