查看数据库某个schema下哪张表占的空间大

为了查询schema下某个表占用的空间问题，以便处理分析问题，直接复制粘贴（改schema）即可

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