Mysql数据库占用空间查询

• 切换到use information_schema

use information_schema;

• 所有数据库的大小

select concat(round(sum(data_length/1024/1024),2),'MB') as data_size from tables;

• 指定数据库的大小：

select concat(round(sum(data_length/1024/1024),2),'MB') as data_size from tables where table_schema='my_db1';

• 指定数据库的某个表的大小

select concat(round(sum(data_length/1024/1024),2),'MB') as data_size from tables where table_schema='my_db1' and table_name='user_info';

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