MySQL is among the most popular database admin systems on the market. A database is a group of cells with info that are arranged in tables and the administration system is the piece of software that links the info to a script app. For example, a forum stores all usernames, avatars, posts and so forth in a database and each time a site visitor opens a specific thread, the forum script connects to the database and “calls” the content that has to be displayed on a certain page. MySQL is extremely popular due to its superb performance, simplicity of use and the fact that it can work with a lot of popular scripting languages such as PHP, Python, Perl, etcetera. All dynamic sites which are built with a script-driven application require some form of database and a lot of the most widely used ones including Joomla, Moodle, Mambo and WordPress use MySQL.