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MySQL查看数据库表容量大小

时间:2019-01-16 15:03:02      阅读:204      评论:0      收藏:0      [点我收藏+]

标签:length   mat   style   info   div   nbsp   orm   tables   MySQL查看数据   

本文介绍MySQL查看数据库表容量大小的命令语句,提供完整查询语句及实例,方便大家学习使用。 

1.查看所有数据库容量大小

select 
table_schema as 数据库,
sum(table_rows) as 记录数,
sum(truncate(data_length/1024/1024, 2)) as 数据容量(MB),
sum(truncate(index_length/1024/1024, 2)) as 索引容量(MB)
from information_schema.tables
group by table_schema
order by sum(data_length) desc, sum(index_length) desc;

2.查看所有数据库各表容量大小

select 
table_schema as 数据库,
table_name as 表名,
table_rows as 记录数,
truncate(data_length/1024/1024, 2) as 数据容量(MB),
truncate(index_length/1024/1024, 2) as 索引容量(MB)
from information_schema.tables
order by data_length desc, index_length desc;

3.查看指定数据库容量大小

例:查看mysql库容量大小

select 
table_schema as 数据库,
sum(table_rows) as 记录数,
sum(truncate(data_length/1024/1024, 2)) as 数据容量(MB),
sum(truncate(index_length/1024/1024, 2)) as 索引容量(MB)
from information_schema.tables
where table_schema=mysql;

4.查看指定数据库各表容量大小

例:查看mysql库各表容量大小

select 
table_schema as 数据库,
table_name as 表名,
table_rows as 记录数,
truncate(data_length/1024/1024, 2) as 数据容量(MB),
truncate(index_length/1024/1024, 2) as 索引容量(MB)
from information_schema.tables
where table_schema=mysql
order by data_length desc, index_length desc;

 

MySQL查看数据库表容量大小

标签:length   mat   style   info   div   nbsp   orm   tables   MySQL查看数据   

原文地址:https://www.cnblogs.com/dekevin/p/10276832.html

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