MariaDB is community developed database based on popular database MySQL. MariaDB was forked from MySQL, and maintains many of the same features, APIs and commands used in MySQL. MariaDB can be accessed for administration using PHPMyAdmin, the same tool used for MySQL. 

MariaDB uses the "XtraDB" storage engine which is a drop-in replacement of InnoDB used by MySQL and a new storage engine called Aria. 

» Glossary of common terms