module to generate SQL from Perl data structures - classic version

 SQL::Abstract::Classic is a low-impact fork of SQL::Abstract v1.81 and nearly
 identical to it. This module exists to preserve the ability of users to opt
 into the new way of doing things in the quickly evolving SQL::Abstract
 according to their own schedules.
 .
 SQL::Abstract and SQL::Abstract::Classic are Perl modules that allow
 developers to generate SQL from Perl data strutures, inspired by
 DBIx::Abstract. The intent of these modules is to provide abstract SQL
 generation methods, allowing one to generate SQL while retaining complete
 control over the statement handles.