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  • (转载)mysql查询今天、昨天、7天、近30天、本月、上一月数据

    (转载)http://blog.163.com/dreamman_yx/blog/static/26526894201053115622827/

    查询

    今天

    select * from 表名 where to_days(时间字段名) = to_days(now());

    昨天

    SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 时间字段名) <= 1

    7天

    SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(时间字段名)

    近30天

    SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(时间字段名)

    本月

    SELECT * FROM 表名 WHERE DATE_FORMAT( 时间字段名, '%Y%m' ) = DATE_FORMAT( CURDATE( ) , '%Y%m' )

    上一月

    SELECT * FROM 表名 WHERE PERIOD_DIFF( date_format( now( ) , '%Y%m' ) , date_format( 时间字段名, '%Y%m' ) ) =1

    例子1:

    mysql> select time('2013-05-13 19:50:33');
    +-----------------------------+
    | time('2013-05-13 19:50:33') |
    +-----------------------------+
    | 19:50:33                    |
    +-----------------------------+
    1 row in set (0.05 sec)
    
    mysql> select date('2013-05-13 19:50:33');
    +-----------------------------+
    | date('2013-05-13 19:50:33') |
    +-----------------------------+
    | 2013-05-13                  |
    +-----------------------------+
    1 row in set (0.00 sec)

    例子2:

    mysql> select to_days(now());
    +----------------+
    | to_days(now()) |
    +----------------+
    |         735425 |
    +----------------+
    1 row in set (0.03 sec)
    
    mysql> select to_days('2013-07-07 19:30:30');
    +--------------------------------+
    | to_days('2013-07-07 19:30:30') |
    +--------------------------------+
    |                         735421 |
    +--------------------------------+
    1 row in set (0.00 sec)
    
    mysql>
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  • 原文地址:https://www.cnblogs.com/Robotke1/p/3183101.html
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