Toolkit for working with and mapping geospatial data
DAO for all database server types with the Java POJO code generator
Database Subsetter and Relational Data Browser
Rel is a database management system (DBMS) that implements Tutorial D.
Concise spatial query and representation system (c-squares)
Command-line sql JDBC tool
A complete database front-end written in PHP.
You can admin a SQL Server with php, like PHPMyAdmin for MySQL