查看cloud_platform数据库中表数据从大到小排列

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='cloud_platform' 
order by

              data_length

desc;