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MySQL 8.3 Reference Manual  /  ...  /  Limits on Number of Databases and Tables

10.4.5 数据库和表的数量限制

MySQL 没有数据库数量的限制。底层文件系统可能对目录数量有限制。

MySQL 没有表数量的限制。底层文件系统可能对表示表的文件数量有限制。单个存储引擎可能施加引擎特定的约束。InnoDB 允许最多 4 亿个表。


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Related Documentation
MySQL 8.3 Release Notes
Download this Manual
PDF (US Ltr) - 40.8Mb
PDF (A4) - 40.9Mb
Man Pages (TGZ) - 294.0Kb
Man Pages (Zip) - 409.0Kb
Info (Gzip) - 4.0Mb
Info (Zip) - 4.0Mb
Excerpts from this Manual
MySQL Backup and Recovery
MySQL NDB Cluster 8.3
MySQL Globalization
MySQL Information Schema
MySQL Installation Guide
MySQL and Linux/Unix
MySQL and macOS
MySQL Partitioning
MySQL Performance Schema
MySQL Replication
Using the MySQL Yum Repository
MySQL Restrictions and Limitations
Security in MySQL
MySQL and Solaris
Building MySQL from Source
Starting and Stopping MySQL
MySQL Tutorial
MySQL and Windows