Editing Database engine (section)

==Storage engines==
{{Seealso|Comparison of MySQL database engines}}
Many of the modern DBMS support multiple storage engines within the same database. For example, [[MySQL]] supports [[InnoDB]] as well as [[MyISAM]].

Some storage engines are [[Database transaction|transactional]].

{| class="wikitable"
|-
! Name !! License !! Transactional || Compatibility || Notes
|-
| [[Aria (storage engine)|Aria]] || [[GPL]] || {{No}} || [[MariaDB]] and [[MySQL]]
|-
| [[Falcon (storage engine)|Falcon]] || GPL || {{Yes}} || MySQL || Discontinued
|-
| [[InnoDB]] || GPL || {{Yes}} || MySQL and MariaDB || The default for MySQL and MariaDB
|-
| [[Memory (storage engine)|Memory]] || GPL || {{No}} || MySQL and MariaDB
|-
| [[MyISAM]] || GPL || {{No}} || MySQL || Was the default for MySQL
|-
| [[InfiniDB]] || GPL || {{No}} ||
|-
| [[TokuDB]] || GPL || {{Yes}} || MySQL and MariaDB || Uses [[fractal tree index]]
|-
| [[WiredTiger]] || GPL || {{Yes}} || [[MongoDB]] || Default for MongoDB
|-
| [[XtraDB]] || GPL || {{Yes}} || MariaDB and [[Percona Server for MySQL]]
|-
| [[RocksDB]] / [[MyRocks]] || [[GNU_General_Public_License#Version_2|GPL v2]] or [[Apache_License|Apache 2.0]] || {{Yes}} || [[ArangoDB]], [[Apache Cassandra|Cassandra]], MariaDB, MongoDB, MySQL, SurrealDB
|}

Additional engine types include:
* [[Embedded database]] engines
* [[In-memory database]] engines