Tcl8.6/Tk8.6 Documentation > TDBC Package Commands, version 1.0.6 > tdbc_tokenize
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The tdbc::tokenize command accepts as its parameter a string that is expected to contain one or more SQL statements. It returns a list of substrings; concatenating these substrings together will yield the original string. Each substring is one of the following:
- A bound variable, which begins with one of the characters ':', '@', or '$'. The remainder of the string is the variable name and will consist of alphanumeric characters and underscores. (The leading character will be be non-numeric.)
- A semicolon that separates two SQL statements.
- Something else in a SQL statement. The tokenizer does not attempt to parse SQL; it merely identifies bound variables (distinguishing them from similar strings appearing inside quotes or comments) and statement delimiters.