- How to Change MySQL Storage Engines

MySQL 5.0 and higher offers nine storage engines and more are likely to be added in the future. The most commonly used are MyISAM, InnoDB, and Berkeley DB (BDB). Each storage engine offers special features and advantages. You can even use different formats for each table in your database, though it may be harder to manage a mixed format database. Better is to keep all tables in a database using the same storage engine, but use different engines for different databases.

To determine which storage engines your server supports, run following SHOW ENGINES; statement. The value in the Support column indicates whether an engine can be used. A value of YES, NO, or DEFAULT indicates that an engine is available, not available, or available and currently set as the default storage engine.

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source:http://linuxpoison.blogspot.com/2010/12/135781677512266.html