PEAR::MDB_QueryTool is an OO-abstraction to the SQL-Query language, it provides 
methods such as setWhere, setOrder, setGroup, setJoin, etc. to easily build 
queries.

It also provides an easy to learn interface that interacts nicely with 
HTML-forms using arrays that contain the column data, that shall be 
updated/added in a DB. This package bases on an SQL-Builder which lets you 
easily build SQL-Statements and execute them.

NB: this is a PEAR::MDB porting from the original DB_QueryTool written by 
Wolfram Kriesing and Paolo Panto (vision:produktion, wk@visionp.de).

WWW: http://pear.php.net/package/MDB_QueryTool/