If you use a script-driven app for your Internet site, any info that both you and the website users create will be stored inside a database - a collection of data, that is arranged in cells and tables for easier reading and writing. The latter is accomplished by employing special software referred to as database management system and one of the most popular ones worldwide is MySQL. A lot of script apps are designed to work with MySQL because it is simple to use, it functions perfectly on a hosting server and it's universal as it can function with popular web programming languages (Java, PHP, Perl, Python) and on various web server Operating Systems (Linux, UNIX, Windows). There are loads of scripts which use MySQL, including really popular ones such as WordPress, Moodle and Joomla.