技巧應用,  程式教學,  開發與維運

用SQL命令查看Mysql數據庫大小

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';

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