MySQL中查詢一切數據庫占用磁盤空間年夜小和單個庫中一切表的年夜小的sql語句。本站提示廣大學習愛好者:(MySQL中查詢一切數據庫占用磁盤空間年夜小和單個庫中一切表的年夜小的sql語句)文章只能為提供參考,不一定能成為您想要的結果。以下是MySQL中查詢一切數據庫占用磁盤空間年夜小和單個庫中一切表的年夜小的sql語句正文
查詢一切數據庫占用磁盤空間年夜小的SQL語句:
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;
查詢單個庫中一切表磁盤占用年夜小的SQL語句:
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;
以上語句測試有用,留意調換以上的TestDB為數據庫名