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我有一个带有以下列的 mysql 表

order_id customer_id total_amount date_added

现在,我想查询某个特定客户,以了解该客户在他/她的订单历史的六个月内是否做出了超过或等于 12000 美元的订单。该时期不是最近的。

有什么解决办法吗?

问候, 迪彭

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1 回答 1

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select sum(total_amount) >= 12000 over_12000
from mytable
where customer_id = nnn
and date_added between 'YYYY-MM-DD' and date_add('YYYY-MM-DD', interval 6 month)

将 nnn 替换为特定的客户 ID,将 YYYY-MM-DD 替换为您感兴趣的 6 个月期间的开始。

更新:

这将使用客户最后一个订单之前的 6 个月时间:

select sum(total_amount) >= 12000 over_1200
from mytable join (select max(date_added) last_date
                   from mytable
                   where customer_id = nnn) last
where customer_id = nnn
and date_added between last_date and date_sub(last_date, interval 6 month)

更新 2:

select m1.date_added end_date, sum(m2.total_amount) >= 12000 
from mytable m1 join mytable m2 on m2.date_added between date_sub(m1.date_added, interval 6 month) and m1.date_added and m1.customer_id = m2.customer_id
where m1.customer_id = nnn
group by end_date
order by end_date
于 2013-02-07T05:41:48.540 回答