查询所有数据库占用空间大小
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_length desc;
查询整个库里面所有表的大小
select table_name,table_rows,data_length+index_length,
concat(round((data_length+index_length)/1024/1024,2),'MB')
data from information_schema.tables where table_schema='你要查询的库'
查询整个库里面所有表的信息
select * from information_schema.tables
where table_schema='你要查询的库';
查询某个数据库内各个表的容量大小
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 = '库名'
group by TABLE_NAME
order by data_length desc;
