Question

我想返回一个财务年度客户的平均订单价值（订单中所有订单项的Qty * Price的总和，然后是平均订单总数），表格如下所示

财政年度从1月/ 7月开始（可以作为参数动态传递）财政年度结束30日/ 6月/年（可作为参数动态传递） UserID（可以作为参数动态传递）

Orders Table
-OrderID
-UserID
-OrderDate

OrderItems Table
-OrderItemID
-OrderID
-Qty
-Price

我使用的脚本语言是coldfusion，db是MSSQL

谢谢大家的时间

CHRIS

Answer 1

不熟悉coldfusion。

SQL是

SELECT o.UserID, AVG(oi.OrderTotal) AverageOrderValue
FROM   Orders o
       INNER JOIN
       (SELECT OrderID, SUM(Qty*Price) OrderTotal
        FROM OrderItems
        GROUP BY OrderID) oi ON o.OrderID=oi.OrderID
WHERE  o.OrderDate BETWEEN @StartDate AND @EndDate

Answer 2

declare 
@first_param datetime='01-01-2001'
@last_param datetime='01-07-2014'
begin

select AVG(orderid_cnt),sum_qty,a.user_id from (
select sum(b.qty*b.price) as sum_qty,orderid,COUNT(orderid) as orderid_cnt

From orders a 
inner join orderitems b
on a.orderid=b.orderid
group by orderid ) a 
inner join  orders a1
on  a.orderid=a1.orderid

创建查询以返回客户订单的平均交易

2 个答案: