MySQL
MySQL is a free relational database management system. MySQL is developed and supported by Oracle Corporation.
MySQL is the solution for small to medium sized applications. It is included in the WAMP, AppServ, LAMP servers and in the portable server assemblies Denver, XAMPP, VertrigoServ. Usually MySQL is used as a server to which local or remote clients access, however the distribution includes an internal server library that allows MySQL to be included in standalone programs.
The flexibility of MySQL is provided by the support of a large number of table types: users can choose from both MyISAM tables, which support full-text search, and InnoDB tables, which support transactions at the level of individual records. Moreover, MySQL comes with a special EXAMPLE table type that demonstrates how to create new table types. Thanks to its open architecture and GPL licensing, new types of tables are constantly appearing in MySQL.