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MySQL Restrictions and Limitations
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MySQL Restrictions and Limitations

Abstract

This is the MySQL Restrictions and Limitations extract from the MySQL 8.0 Reference Manual.

For legal information, see theLegal Notices.

For help with using MySQL, please visit theMySQL Forums, where you can discuss your issues with other MySQL users.

Document generated on: 2025-12-09 (revision: 84099)


Table of Contents

Preface and Legal Notices
1 Restrictions on Stored Programs
2 Restrictions on Views
3 Restrictions on Condition Handling
4 Restrictions on Server-Side Cursors
5 Restrictions on Subqueries
6 Restrictions on XA Transactions
7 Restrictions on Character Sets
8 Restrictions on Performance Schema
9 Restrictions on Pluggable Authentication
10 Restrictions and Limitations on Partitioning
10.1 Partitioning Keys, Primary Keys, and Unique Keys
10.2 Partitioning Limitations Relating to Storage Engines
10.3 Partitioning Limitations Relating to Functions
11 Windows Platform Restrictions
12 Limits in MySQL
12.1 Identifier Length Limits
12.2 Grant Table Scope Column Properties
12.3 Limits on Number of Databases and Tables
12.4 Limits on Table Size
12.5 Limits on Table Column Count and Row Size
13 MySQL Differences from Standard SQL
13.1 SELECT INTO TABLE Differences
13.2 UPDATE Differences
13.3 FOREIGN KEY Constraint Differences
13.4 '--' as the Start of a Comment
14 Known Issues in MySQL