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：
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
//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 sex when '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
//对时间戳格式化成 2018-10 from_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
select now(),curdate(),curtime()
例如
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：
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
//格式化时间戳，返回星期数，注意周日返回值为0 date_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
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总结
以上所述是www.887551.com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