MariaDB is a fork of MySQL. When MySQL was bought by Oracle, the original author of MySQL decided to start a new branch, which will always be Free Software and open to the contributions of the community.

MariaDB logotype with sea lion mascot.
MariaDB logotype with sea lion mascot.

The purpose of this book is to provide a user-friendly community-contributed manual for MariaDB. Because MariaDB is a fork, this manual won't explain the features of the "parent" software, which are described in the book MySQL.

Unlike the official MySQL documentation, this book is a Free project. It is available under the Creative Commons Attribution/Share-Alike License 3.0 (Unported) and the GNU Free Documentation License.

Table of contents


  1. What is MariaDB?
  2. Differences between MariaDB and MySQL
  3. History
  4. Resources

Storage Engines

  1. Aria
  2. PBXT
  3. XtraDB
  4. FederatedX
  5. w:InnoDB


  1. Pool of threads
  2. Table elimination
  3. Microseconds granularity
  4. Performance


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