DCBase

The MySQL Reference Manual covers most areas of MySQL use. This manual is for both MySQL Community Server and MySQL Enterprise Server. If you cannot find the answer(s) from the manual, you can get support by purchasing MySQL Enterprise, which provides comprehensive support and services. MySQL Enterprise also provides a comprehensive knowledge base library that includes hundreds of technical articles resolving difficult problems on popular database topics such as performance, replication, and migration.

http://dev.mysql.com/doc/