mysql查詢數(shù)據(jù)庫的大小的方法：1、查詢整個庫的大小，代碼為【select concat(round(sum(DATA_LENGTH/1024/1024),2),'MB')】；2、查詢某個庫的大小，代碼為【from informati】。

相關(guān)學習推薦：mysql數(shù)據(jù)庫

mysql查詢數(shù)據(jù)庫的大小的方法：

1、查詢整個mysql數(shù)據(jù)庫，整個庫的大??；單位轉(zhuǎn)換為MB。

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

2、查詢mysql數(shù)據(jù)庫，某個庫的大??；

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

3、查看庫中某個表的大?。?/p>

select concat(round(sum(DATA_LENGTH/1024/1024),2),'MB') as data    from information_schema.TABLES  where table_schema = 'testdb'    and table_name = 'test_a';

4、查看mysql庫中，test開頭的表，所有存儲大??；

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