This is the Reference Manual for the MySQL Database System, version
8.0, through release 8.0.20. Differences
between minor versions of MySQL 8.0 are noted in the
present text with reference to release numbers
x). For license
information, see the Legal
This manual is not intended for use with older versions of the MySQL software due to the many functional and other differences between MySQL 8.0 and previous versions. If you are using an earlier release of the MySQL software, please refer to the appropriate manual. For example, MySQL 5.7 Reference Manual covers the 5.7 series of MySQL software releases.
Licensing information—MySQL 8.0. This product may include third-party software, used under license. If you are using a Commercial release of MySQL 8.0, see the MySQL 8.0 Commercial Release License Information User Manual for licensing information, including licensing information relating to third-party software that may be included in this Commercial release. If you are using a Community release of MySQL 8.0, see the MySQL 8.0 Community Release License Information User Manual for licensing information, including licensing information relating to third-party software that may be included in this Community release.
Licensing information—MySQL NDB Cluster 8.0. If you are using a Community release of MySQL NDB Cluster 8.0, see the MySQL NDB Cluster 8.0 Community Release License Information User Manual for licensing information, including licensing information relating to third-party software that may be included in this Community release.
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