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  • MySQL查看数据库表容量大小

    reference:https://www.php.cn/mysql-tutorials-401945.html

    本文介绍MySQL查看数据库表容量大小的命令语句,提供完整查询语句及实例,方便大家学习使用。

    相关mysql视频教程推荐:《mysql教程》

    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.tablesgroup by table_schemaorder 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.tablesorder by data_length desc, index_length desc;
    3.查看指定数据库容量大小

    例:查看mysql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.tableswhere table_schema='mysql';

    4.查看指定数据库各表容量大小

    例:查看mysql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.tableswhere table_schema='mysql'order by data_length desc, index_length desc;


    本文讲解了MySQL查看数据库表容量大小,更多相关知识请关注php中文网。

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  • 原文地址:https://www.cnblogs.com/marxtsui/p/14040457.html
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