1、進(jìn)入information_schema 數(shù)據(jù)庫(kù)(存放了其他的數(shù)據(jù)庫(kù)的信息) use information_schema;
2、查詢所有數(shù)據(jù)的大小:
select concat(round(sum(data_length/1024/1024),2),’MB’) as data from tables;
3、查看指定數(shù)據(jù)庫(kù)的大小:
比如查看數(shù)據(jù)庫(kù)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(shù)據(jù)庫(kù)的某個(gè)表的大小
比如查看數(shù)據(jù)庫(kù)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’;