mysql数据库中可以创建多少张表? [英] How many tables can be created in a mysql database?

问题描述

在mysql数据库中可以创建多少个表?

How many tables can be created in a mysql database ?

在mysql表中可以创建多少列?

And how many columns can be created in a mysql table ?

可以在mysql表中插入多少行?

How many rows can be inserted into a mysql table ?

推荐答案

可以在mysql数据库中创建多少个表?

MySQL对数据库数量没有限制.基础文件系统可能会限制表的数量.各个存储引擎可能会强加特定于引擎的约束. InnoDB最多允许40亿张表.

MySQL has no limit on the number of databases. The underlying file system may have a limit on the number of tables. Individual storage engines may impose engine-specific constraints. InnoDB permits up to 4 billion tables.

以及可以在mysql表中创建多少列?

每个表有4096列的硬限制，但是对于给定的表，有效最大值可能会更少.确切的限制取决于几个相互作用的因素.

There is a hard limit of 4096 columns per table, but the effective maximum may be less for a given table. The exact limit depends on several interacting factors.

可以在mysql表中插入多少行?

行数受表允许的最大大小限制.这取决于操作系统.您可以通过在创建表时设置MAX_ROWS来限制行数.

The number of rows is limited by the maximum size allowed for a table. This is OS-dependent. You can impose a limit on the number of rows by setting MAX_ROWS at table creation time.

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