Mysql:获取数据库/表的大小

1. 查询所有数据库的大小

use information_schema
select concat(round(sum(DATA_LENGTH/1024/1024),2),'MB') as data from TABLES

2. 查看指定数据库的大小 / test数据库为例

select concat(round(sum(DATA_LENGTH/1024/1024),2),'MB') as data from TABLES where table_schema='test';

3. 查看指定数据库的表的大小

select concat(round(sum(DATA_LENGTH/1024/1024),2),'MB') as data from TABLES where table_schema='test' and table_name='cmdb';