Manual Reference Pages - TDBC_TOKENIZE (n)
tdbc::tokenize - TDBC SQL tokenizer
package require tdbc 1.0
As a convenience to database drivers, Tcl Database Connectivity (TDBC)
provides a command to break SQL code apart into tokens so that bound
variables can readily be identified and substituted.
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
tdbc(n), tdbc::connection(n), tdbc::statement(n), tdbc::resultset(n)
TDBC, SQL, database, tokenize
Copyright (c) 2008 by Kevin B. Kenny.
|Tcl ||TDBC::TOKENIZE (n) ||8.6 |
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