i will help it to bring to it firebird support

http://code.google.com/p/sql-query-tester/

http://www.serversidemagazine.com/news/sql-query-tester-v01

here are my first tests from command line
http://groups.google.com/group/sql-query-tester/browse_thread/thread/426d533cc69bfe52

also it works if i test it without ajax
http://localhost:8080/sql-query-tester-read-only/lib/qt/ajax.query.inc.php

next on to do , fix the ajax