MYSQL-查看每个数据库的大小和每个表的大小

每个数据库大小

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_size desc;

某数据库下每个表的大小

use information_schema;
select table_name,table_rows from tables
where TABLE_SCHEMA = 'database_name'
order by table_rows desc;