MySQL is one of the most popular database admin systems out there. A database is a set of cells with information that are arranged in tables and the control system is the piece of software that links the information to a script app. For instance, a forum stores all posts, usernames, avatars and so on inside a database and every time a site visitor opens a particular thread, the forum script connects to the database and “calls” the content that has to be accessible on a certain page. MySQL is very popular due to its excellent performance, simplicity of use and the fact that it can work with a lot of popular scripting languages such as PHP, Python, Perl, etc. All dynamic web sites which are built with a script-driven application need some kind of database and a number of the most widely used ones like Joomla, Moodle, Mambo and WordPress use MySQL.