MySQL中查詢所有資料庫佔用磁碟空間大小和單個庫中所有表的大小的sql語句_Mysql

查詢所有資料庫佔用磁碟空間大小的SQL語句：

複製代碼 代碼如下:

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;

查詢單個庫中所有表磁碟佔用大小的SQL語句：

複製代碼 代碼如下:

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;

以上語句測試有效，注意替換以上的TestDB為資料庫名