MySQL Community Edition is the world's most popular open source database....
phpMyAdmin is a free software tool written in PHP intended to handle the administration of MySQL....
PostgreSQL is a powerful, open source object-relational database system....
Powerful and flexible net reports generator with visual report designer...
Firebird is a relational database offering many ANSI SQL standard features....
The Universal Database Tool....
SQL Server 2008 Express Edition is a free, easy-to-use, lightweight, and embeddable version of SQL Server 2008....
Persistency built in, not a database add-on....
Microsoft SQL Server Management Studio Express is a free, easy-to-use graphical management tool....
SqlDbx is a fast and easy to use database SQL development IDE ....