查看數(shù)據(jù)庫(kù)的大小
用SQL命令查看Mysql數(shù)據(jù)庫(kù)大小
要想知道每個(gè)數(shù)據(jù)庫(kù)的大小的話,步驟如下:
1辫狼、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初斑、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膨处、查看指定數(shù)據(jù)庫(kù)的大屑印:
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';
查看數(shù)據(jù)表的創(chuàng)建時(shí)間
show databases;
use information_schema;
select create_time from tables where table_schema="庫(kù)名" and table_name="表名";