MySQL is an open-source relational database management system (RDBMS) that runs as a server providing multi-user access to a number of databases. It was owned and sponsored by a single for-profit firm, MySQL AB, now owned by Oracle Corporation.

This wiki is the collective experience of many MySQL developers and DBAs.  Like Wikipedia, this wiki is an open resource for you to share your knowledge of the MySQL database.  So, join in and create/update the articles!