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  • 【Mysql】 Mysql 统计数据库大小及信息

    1:使用以下命令查询指定数据库容量大小:

    where table_schema='mysql'    #mysql是数据库名称,将mysql修改自己想要查询的数据库即可。
    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';

    2:查询数据库中所有表的大小及信息:

    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;

    3:查询所有数据库大小及信息:

    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;

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  • 原文地址:https://www.cnblogs.com/willamwang/p/13953425.html
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