Mysql 查看 数据库/表 磁盘占用

查看 - 所有数据库的磁盘占用

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
ORDER BY data_size desc;

查看指定数据库内 - 所有数据表的磁盘占用

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 = 'boot'
order by data_length desc;