MYSQL如何实现连续签到断签一天从头开始的功能详解（图）-mysql教程-PHP中文网

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MYSQL如何实现连续签到断签一天从头开始的功能详解（图）

黄舟

May 28, 2017 am 09:42 AM

mysql

这篇文章主要介绍了MYSQL实现连续签到功能断签一天从头开始，非常不错，具有参考借鉴价值,需要的朋友可以参考下

1，创建测试表

CREATE TABLE `testsign` ( 
 `userid` int(5) DEFAULT NULL, 
 `username` varchar(20) DEFAULT NULL, 
 `signtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, 
 `type` int(1) DEFAULT &#39;0&#39; COMMENT &#39;为0表示签到数据，1表示签到日期字典数据&#39; 
) ENGINE=InnoDB DEFAULT CHARSET=utf8

2，插入测试数据，签到时间为5.21号到6.5号，可以写活，但是要写存储过程，我比较懒，重点应该是取签到数据的代码，就是第三点，呵呵

insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-05-21 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-05-22 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-05-23 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-05-24 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-05-25 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-05-26 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-05-27 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-05-28 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-05-29 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-05-30 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-05-31 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-06-01 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-06-02 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-06-03 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-06-04 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;72164&#39;,&#39;字典&#39;,&#39;2017-06-05 00:00:00&#39;,&#39;1&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;800675&#39;,&#39;吴小双签到数据&#39;,&#39;2017-05-21 00:00:00&#39;,&#39;0&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;800675&#39;,&#39;吴小双签到数据&#39;,&#39;2017-05-22 00:00:00&#39;,&#39;0&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;800675&#39;,&#39;吴小双签到数据&#39;,&#39;2017-05-23 00:00:00&#39;,&#39;0&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;800675&#39;,&#39;吴小双签到数据&#39;,&#39;2017-05-24 00:00:00&#39;,&#39;0&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;800675&#39;,&#39;吴小双签到数据&#39;,&#39;2017-05-25 00:00:00&#39;,&#39;0&#39;); 
insert into `testsign` (`userid`, `username`, `signtime`, `type`) values(&#39;800675&#39;,&#39;吴小双签到数据&#39;,&#39;2017-05-26 00:00:00&#39;,&#39;0&#39;);

3，查询连续签到数据

SELECT * FROM testsign WHERE TYPE=0 AND 
 DATE_FORMAT(signtime,&#39;%Y%m%d&#39;)>( 
 SELECT IFNULL(MAX(DATE_FORMAT(signtime,&#39;%Y%m%d&#39;)),"20170520") FROM testsign WHERE TYPE=1 
 AND DATE_FORMAT(signtime,&#39;%Y%m%d&#39;)<=DATE_ADD(NOW(), INTERVAL -1 DAY) 
 AND DATE_FORMAT(signtime,&#39;%Y%m%d&#39;) NOT IN ( 
    SELECT DATE_FORMAT(signtime,&#39;%Y%m%d&#39;) FROM testsign WHERE TYPE=0 AND userid=800675 
    ) 
 ) 
 AND DATE_FORMAT(signtime,&#39;%Y%m%d&#39;)<=&#39;20170605&#39; 
 AND userid=800675

未断数据

删掉23号数据，从24号开始算，连续签三天

以上是MYSQL如何实现连续签到断签一天从头开始的功能详解（图）的详细内容。更多信息请关注PHP中文网其他相关文章！

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