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MySQL中查询所有数据库占用磁盘空间大小和单个库中所有表的大小的sql语句
来源: 互联网 发布时间:2014-10-11
本文导语: 查询所有数据库占用磁盘空间大小的SQL语句: 代码如下:select TABLE_SCHEMA, concat(truncate(sum(data_length)/1024/1024,2),' MB') as data_size,concat(truncate(sum(index_length)/1024/1024,2),'MB') as index_sizefrom information_schema.tablesgroup by TABLE_SCHEMAorder by data_lengt...
查询所有数据库占用磁盘空间大小的SQL语句:
代码如下:
select TABLE_SCHEMA, concat(truncate(sum(data_length)/1024/1024,2),' MB') as data_size,
concat(truncate(sum(index_length)/1024/1024,2),'MB') as index_size
from information_schema.tables
group by TABLE_SCHEMA
order by data_length desc;
查询单个库中所有表磁盘占用大小的SQL语句:
代码如下:
select TABLE_NAME, concat(truncate(data_length/1024/1024,2),' MB') as data_size,
concat(truncate(index_length/1024/1024,2),' MB') as index_size
from information_schema.tables where TABLE_SCHEMA = 'TestDB'
group by TABLE_NAME
order by data_length desc;
以上语句测试有效,注意替换以上的TestDB为数据库名