MySQL中查詢所有數據庫占用磁盤空間大小和單個庫中所有表的大小的sql語句，mysqlsql

MySQL中查詢所有數據庫占用磁盤空間大小和單個庫中所有表的大小的sql語句，mysqlsql

查詢所有數據庫占用磁盤空間大小的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;

查詢單個庫中所有表磁盤占用大小的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;

注意替換以上的TestDB為具體的數據庫名