SQL administration and development frontend with graphical user interface, written completely in Java that runs on virtual machines supporting Java

Zaval Database; light and functional web-based front-end to any database accessable by JDBC drivers;
knoda is database frontend for Linux/KDE based on hk_classes and is released under the GNU General Public; this software is referred to as a generic database frontend, your database system is the backend database and the interface between the two is called the backend API consisting of a small number of function handlers and structure definitions

The front end of a database