MariaDB is a relational DBMS that started as a fork of MySQL. New features from MySQL are likely to be also added into MariaDB. In most cases, users can directly switch from MySQL to MariaDB without having to modify their application code.


MariaDB was forked from MySQL after Sun's acquisition by Oracle. The project is lead by Michael Widenius, who was also a founder of MySQL AB which was later acquired by Sun. The DBMS was named after Michael Widenius' younger daughter Maria, just like MySQL, which was named after his first daughter "My".


Consistent Fuzzy

XtraDB, a fork of InnoDB, is the default storage engine of MariaDB 10.1, while InnoDB is the default storage engine of MariaDB 10.2. InnoDB supports: Sharp checkpointing: all dirty pages of committed transactions are being flushed, while dirty pages for uncommitted transactions are not being flushed. Fuzzy checkpointing: the dirty pages that will be flushed in sharp checkpointing will be gradually flushed.

Foreign Keys


MariaDB requires foreign keys to be checked that some integrity rules are enforced.


B+Tree Hash Table

Different Storage engines support different indexes: Aria: B-tree, R-tree MyISAM B-tree, R-tree InnoDB: B-tree Memory/Heap: Hash, B-tree *NDB: B-tree, Hash


Logical Logging Physical Logging

Physical logging is called binary logging in MariaDB, while logical logging is called general query logging.

Query Compilation

Not Supported

Storage Architecture

Disk-oriented In-Memory

MariaDB supports different storage architectures with different storage engines.

Compatible Systems

Derivative Systems

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MariaDB Logo

Source Code

Tech Docs




MariaDB Foundation

Country of Origin


Start Year


Project Type

Open Source

Written in

Bash, C, C++, Perl

Supported languages

C, C#, C++, Java, Perl, PHP, Ruby, SQL

Derived From


Compatible With


Operating Systems

Linux, Windows


GPL v2


Compatible Systems

Derivative Systems

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