对于所有的需求，当你不知道怎么处理的时候，你就先用最简单的方法，或者说的明白一点，用最原始的方法，先实现业务需求再说。
一、对提现队列数据表“ims_checkout_task”进行汇总统计，按月汇总统计每个月的提现总额，提现总次数。
1、SQL操作如下：
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SELECT id,SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 11 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '0',SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 10 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '1',SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 9 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '2',SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 8 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '3',SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 7 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '4',SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 6 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '5',SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 5 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '6',SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 4 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '7',SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 3 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '8',SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 2 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '9',SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '10',SUM(case when FROM_UNIXTIME(addTime,'%Y-%m') = date_format(DATE_SUB(curdate(), INTERVAL 0 MONTH),'%Y-%m') AND `status` = 1 then money else 0 end) as '11'FROM ims_checkout_task |
2、数据库返回如下：
3、关键词：case when
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//流程控制语句case语法，例如，如果sex字段值为1，则输出男；如果sex值为2，则输出女；否则输出其他CASE sexWHEN '1' THEN '男'WHEN '2' THEN '女'ELSE '其他' END//所以上面的SQL为，如果条件成立，则输出提现金额money字段，否则输出0. |
时间处理
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//对时间戳格式化成 2018-10FROM_UNIXTIME(addTime,'%Y-%m')//SQL获取当前时间格式 2019-08 ,根据expr值不同，依次获取前一个月1，前两个月2 ···DATE_FORMAT(DATE_SUB(CURDATE(), INTERVAL 0 MONTH),'%Y-%m')// 函数用于以不同的格式显示日期/时间数据。DATE_FORMAT(date,format)//函数从日期减去指定的时间间隔。DATE_SUB(date,INTERVAL expr type)//函数返回当前的日期。CURDATE() |
例如
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SELECT NOW(),CURDATE(),CURTIME() |
例如
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SELECT DAYOFWEEK(NOW()),WEEKDAY(now()),DATE_FORMAT(NOW(),"%w"),NOW() |
二、对积分订单数据表按周汇总统计订单量，比如今天是周二，返回周一到周二的每天单量汇总数据，依次类推
1、SQL操作如下：
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SELECT id,SUM(case when DATE_FORMAT(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),'%w') = 1 AND WEEK(date_add(curdate(),interval 6 day),2) = WEEK(date_add(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),interval 6 day),2) AND `pay_status` = 1 then 1 else 0 end) as '0',SUM(case when DATE_FORMAT(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),'%w') = 2 AND WEEK(date_add(curdate(),interval 6 day),2) = WEEK(date_add(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),interval 6 day),2) AND `pay_status` = 1 then 1 else 0 end) as '1',SUM(case when DATE_FORMAT(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),'%w') = 3 AND WEEK(date_add(curdate(),interval 6 day),2) = WEEK(date_add(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),interval 6 day),2) AND `pay_status` = 1 then 1 else 0 end) as '2',SUM(case when DATE_FORMAT(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),'%w') = 4 AND WEEK(date_add(curdate(),interval 6 day),2) = WEEK(date_add(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),interval 6 day),2) AND `pay_status` = 1 then 1 else 0 end) as '3',SUM(case when DATE_FORMAT(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),'%w') = 5 AND WEEK(date_add(curdate(),interval 6 day),2) = WEEK(date_add(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),interval 6 day),2) AND `pay_status` = 1 then 1 else 0 end) as '4',SUM(case when DATE_FORMAT(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),'%w') = 6 AND WEEK(date_add(curdate(),interval 6 day),2) = WEEK(date_add(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),interval 6 day),2) AND `pay_status` = 1 then 1 else 0 end) as '5',SUM(case when DATE_FORMAT(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),'%w') = 0 AND WEEK(date_add(curdate(),interval 6 day),2) = WEEK(date_add(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),interval 6 day),2) AND `pay_status` = 1 then 1 else 0 end) as '6'FROM ims_integral_order |
2、数据库返回如下：
3、关键词
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//格式化时间戳，返回星期数，注意周日返回值为0DATE_FORMAT(FROM_UNIXTIME(pay_time,'%Y-%m-%d'),'%w')//返回当前时间为一年中第几周WEEK(DATE_ADD(CURDATE(),interval 6 day),2)//获取指定日期是一年中的第几周WEEK(date,mode)//函数向日期添加指定的时间间隔。DATE_ADD(date,INTERVAL expr type)//所以上面的查询条件为星期和第几周同时满足 |
影子是一个会撒谎的精灵，它在虚空中流浪和等待被发现之间;在存在与不存在之间....
总结
以上所述是小编给大家介绍的SQL对数据进行按月统计或对数据进行按星期统计的实例代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！
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原文链接：https://www.cnblogs.com/camg/p/11345086.html
