我有一个表,收集订单.领域是:
> customerName(text)
> DateOfOrder(datetime).
我想每个客户每周显示订单总额.我想安排每周的星期五,这样看起来像这样:
all dates follow mm/dd/yyyy
"bobs pizza",3/5/2010,10
"the phone co",5
"bobs pizza",3/12/2010,3
"the phone co",11
有人可以告诉我怎么做吗?
谢谢
做
一个你可以更容易地分组的领域.
SELECT COUNT(OrderID),WeekStart
FROM
(
SELECT *,dateadd(week,datediff(day,'20000107',yourDate) / 7,'20000107') AS WeekStart
FROM Orders
) o
GROUP BY WeekStart;
20000107是一个知名的星期五.