SQL查询库、表存储容量大小

 查看所有数据库的大小

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_sizefrom information_schema.tablesgroup by TABLE_SCHEMAorder by data_length desc;

 查看数据库每个表的存储容量

SELECT aa.TABLE_NAME,aa.data_size,aa.index_size,aa.data_size+aa.index_size as table_sizefrom (select TABLE_NAME, concat(truncate(data_length/1024/1024,2),' MB') as data_size,concat(truncate(index_length/1024/1024,2),' MB') as index_sizefrom information_schema.tables where TABLE_SCHEMA = '数据库名'group by TABLE_NAMEorder by data_length desc) aa;

注：把数据库名改为要查看的数据库名就可以了