MySQL

MySQL is a popular choice of database for use in web applications and is a is a freely available open source Relational Database Management System (RDBMS) that uses Structured Query Language (SQL).

The MySQL website has a complete reference manual with search capabilities available on their website:
http://dev.mysql.com/doc/” target=”_blank”>http://dev.mysql.com/doc/.

The manual covers everything from basic installation, SQL syntax, to advanced usage like replication and clustering. Additionally there are translations of the reference manual in German, French, Japanese, Portuguese, and Russian available as well.