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mysql 查看大表,查看个表占用大小
use information_schema; -- 查看 各库 占用 大小 ...
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03
2020/09

mysql 查看大表,查看个表占用大小

    use information_schema;
    
    
    -- 查看 各库 占用 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;
    
    -- 查看某个库 各表 占用 情况
    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 = 'ku_ming'
    group by TABLE_NAME
    order by data_length desc;
    
    -- 查看 某个库 某个表 占用 情况
    select table_name,concat(round(sum(data_length/1024/1024),2),'MB') as data
    from tables where table_schema='ku_ming'
    and table_name='tablename';

原文地址 : https://www.cnblogs.com/angdh/p/12537447.html

最后修改:2020 年 09 月 03 日 03 : 51 PM
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