最简单的方法为:
select concat(round(sum(data_length/1024/1024),2),'MB') as data from INFORMATION_SCHEMA.tables where table_schema='XXXXX2206';
另外发现备份恢复的大小也不一样了
备份恢复之前 +-----------+ | data | +-----------+ | 5789.34MB | +-----------+ 1 row in set (6.51 sec) 备份恢复之后 +-----------+ | data | +-----------+ | 4821.02MB | +-----------+ 1 row in set (16.20 sec)
1、进入information_schema 数据库(存放了其他的数据库的信息)
use information_schema;
mysql> use information_schema
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
2、查询所有数据的大小:
select concat(round(sum(data_length/1024/1024),2),'MB') as data from information_schema.tables;
3、查看指定数据库的大小:
比如查看数据库home的大小
select concat(round(sum(data_length/1024/1024),2),'MB') as data from information_schema.tables where table_schema='database_name';
4、查看指定数据库的某个表的大小
比如查看数据库home中 members 表的大小
select concat(round(sum(data_length/1024/1024),2),'MB') as data from information_schema.tables where table_schema='database_name' and table_name='table_name';
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原文链接:https://blog.csdn.net/weixin_42852778/article/details/123248434