• MySQL按时间查找


    RecentMutations表的结构如图,现在的需求是需要查找到2017年09月08日前10天的变体总数:

    SQL语句:SELECT SUM(MutantNumber) FROM RecentMutations WHERE DATE_SUB( CURDATE() , INTERVAL 10 DAY) <=  RecentMutations.`Date`;

    执行的结果为:

     MySQL关于根据日期查询数据

    1.查询某日往前10天的数据:

    SELECT * FROM RecentMutations WHERE DATE_SUB( CURDATE() , INTERVAL 10 DAY) <=  RecentMutations.`Date`;

    2.查询某段日期之间的数据:

    SELECT * FROM RecentMutations WHERE  RecentMutations.`Date` BETWEEN '2017-09-05' AND '2017-09-09';

    3.查询某日往前三个月的数据:

    SELECT * FROM RecentMutations WHERE  DATE_SUB( CURDATE() , INTERVAL 3 MONTH) <= RecentMutations.`Date`;

    4.查询从现在起往前三个月的数据:

    SELECT * FROM RecentMutations WHERE  RecentMutations.`Date` BETWEEN DATE_SUB( CURDATE() , INTERVAL 3 MONTH) AND NOW();

    5.查询本月的数据:

    SELECT * FROM RecentMutations WHERE DATE_FORMAT( RecentMutations.`Date` , '%Y-%M') = DATE_FORMAT( NOW() , '%Y-%M');

    6.查询本周的数据:

    SELECT * FROM RecentMutations WHERE YEARWEEK( RecentMutations.`Date`) = YEARWEEK( NOW() );

    7.查询上周的数据:

    SELECT * FROM RecentMutations WHERE YEARWEEK( RecentMutations.`Date`) = YEARWEEK( NOW() ) - 1;
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  • 原文地址:https://www.cnblogs.com/fangpengchengbupter/p/7495729.html
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