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  • MySQL 查看数据库数据表空间大小

    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.tables
    group by table_schema
    order 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.tables
    order by data_length desc, index_length desc;
    

    3.查看指定数据库容量大小

    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.tables
    where table_schema='mysql';-- 查看mysql库容量大小
    

    4.查看指定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.tables
    where table_schema='mysql' -- 查看mysql库各表容量大小
    order by data_length desc, index_length desc;
    

      

    参考:https://www.cnblogs.com/for917157ever/p/14032940.html

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  • 原文地址:https://www.cnblogs.com/wongzzh/p/15175002.html
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