MySQL 如何查看表的大小
Posted 龍龍小宝
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了MySQL 如何查看表的大小相关的知识，希望对你有一定的参考价值。
1. 查看所有数据库容量大小
select
table_schema as \'数据库\',
sum(table_rows) as \'记录数\',
sum(truncate(data_length/1024/1024, 2)) as \'数据容量(MB)\',
sum(truncate(index_length/1024/1024, 2)) as \'索引容量(MB)\'
from information_schema.tables
group by table_schema
order by sum(data_length) desc, sum(index_length) desc;
2. 查看所有数据库各表容量大小
select
table_schema as \'数据库\',
table_name as \'表名\',
table_rows as \'记录数\',
truncate(data_length/1024/1024, 2) as \'数据容量(MB)\',
truncate(index_length/1024/1024, 2) as \'索引容量(MB)\'
from information_schema.tables
order by data_length desc, index_length desc;
3. 查看指定数据库容量大小
select
table_schema as \'数据库\',
sum(table_rows) as \'记录数\',
sum(truncate(data_length/1024/1024, 2)) as \'数据容量(MB)\',
sum(truncate(index_length/1024/1024, 2)) as \'索引容量(MB)\'
from information_schema.tables
where table_schema=\'mysql\';
4. 查看指定数据库各表容量大小
select
table_schema as \'数据库\',
table_name as \'表名\',
table_rows as \'记录数\',
truncate(data_length/1024/1024, 2) as \'数据容量(MB)\',
truncate(index_length/1024/1024, 2) as \'索引容量(MB)\'
from information_schema.tables
where table_schema=\'mysql\'
order by data_length desc, index_length desc;
以上是关于MySQL 如何查看表的大小的主要内容，如果未能解决你的问题，请参考以下文章