MYSQL列举某个数据库下面各个表的磁盘空间占用情况

列举所有数据库的磁盘空间占用情况

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;

列举某个数据库下面各个表的磁盘空间占用情况

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 = 'database_name'
group by TABLE_NAME
order by data_length desc;