MySQL is the world’s most popular open source database, sporting a barrier of entry low enough to attract novice developers yet powerful enough to power some of the world’s most popular websites, among them Yahoo!, BBC News, the U.S. Census Bureau, and Craigslist. This reference card was created to help you quickly navigate some of MySQL’s most popular features. Covering topics such as confguration, administration software, backup procedures, SQL features, and user management, this card will serve as a handy desk reference for countless projects to come.