Mysql数据库查询每个表占用空间的语句

/* 查询每个表占用空间大小 */

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 = 'reportDB'

group by TABLE_NAME order by data_length desc;

/* 查询所有表占用总空间大小 */

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;