Linux下查看MySQL占用磁盘空间大小

2024年2月21日 42次阅读 来源: 看，未来

1、进入mysql数据库
2、查看所有库：

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;

3、查看单个库

select concat(truncate(sum(data_length)/1024/1024,2),'MB') as data_size,
concat(truncate(sum(max_data_length)/1024/1024,2),'MB') as max_data_size,
concat(truncate(sum(data_free)/1024/1024,2),'MB') as data_free,
concat(truncate(sum(index_length)/1024/1024,2),'MB') as index_size
from information_schema.tables where TABLE_SCHEMA ='databasename';

4、查看单库下所有表

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 = 'databasename' group by TABLE_NAME order by data_length desc;

5、查看单库下单表

SELECT TABLE_NAME,DATA_LENGTH+INDEX_LENGTH,TABLE_ROWS FROM TABLES 
WHERE TABLE_SCHEMA='数据库名' AND TABLE_NAME='表名'
    原文作者：看，未来
    原文地址: https://blog.csdn.net/qq_43762191/article/details/122451787
    本文转自网络文章，转载此文章仅为分享知识，如有侵权，请联系博主进行删除。
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