1、進入information_schema 數據庫(存放了其他的數據庫的信息)
use information_schema;
2、查詢所有數據的大小:
select concat(round(sum(data_length/1024/1024),2),’MB’) as data from tables;
3、查看指定數據庫的大小:
比如查看數據庫home的大小
select concat(round(sum(data_length/1024/1024),2),’MB’) as data from tables where table_schema=’home’;
4、查看指定數據庫的某個表的大小
比如查看數據庫home中 members 表的大小
select concat(round(sum(data_length/1024/1024),2),’MB’) as data from tables where table_schema=’home’ and table_name=’members’;