Database management in a single PHP file
Database Subsetter and Relational Data Browser
SQLObject is a Python ORM.
Helping users to quickly understand SQL queries
Database SQL, query tool, using JDBC for Oracle,SQLite,PostgreSQL,etc
SQL Embedded Manager, is a light-weight implementation of the SSMS.
QDepo - formerly known as TPDA - Query Repository Tool
A UI tool for any database
A complete database front-end written in PHP.