WebSQL. Freeware

Web based database administrator tool: "WebSQL wants to run on every DBMS and wants to give you the chance to have a unique tool to access and manage a DB...through a simple web interface. * User can: browse database structure as tables, views, keys, indices etc. * create, edit, and execute SQL scripts * save and reload queries * browse and edit table's content in a 'GridView' (excel-like) * view database structure as ER diagram It works with any JDBC compliant database (Oracle, MS SQLServer, MySQL, DB2, Sybase, Firebird, HSQLDB, PostgreSQL, Apache Derby, Mckoi SQL)"