MySQL 占用空间一键查询实践[申明：来源于网络]

MySQL 占用空间一键查询实践

查询所有数据库占用磁盘空间大小的SQL语句：
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;

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查询单个库中所有表磁盘占用大小的SQL语句：（注意替换TestDB,为你要查询的DB_NAME）

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;

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