使用子查询并按日期排序值

Question

我正在尝试获取日期，折扣，总计，净总额...按日期排序，折扣显示实际金额但是当我选择多个日期时，总金额将在我选择的那些日期汇总它将按日期排序

DECLARE @pR FLOAT = (SELECT  SUM(CAST(Price AS FLOAT)) AS Price 
                     FROM Orders WHERE isPaid = 1  
                      AND PaidDate BETWEEN '8/17/2015' AND  '8/18/2015' ) ;

SELECT Orders.PaidDate 
     , @pR AS Total 
     ,sum(theorderids.Discount) As Discount
     ,(@pR - sum(theorderids.Discount)) AS [Net Total] 
From 
    (SELECT OrderId, PaidDate 
     FROM Orders 
     WHERE Orders.PaidDate BETWEEN '8/17/2015' AND'8/18/2015' 
     GROUP BY Orders.OrderId, Orders.PaidDate) AS Orders
INNER JOIN theorderids ON Orders.OrderId = theorderids.ID 
GROUP BY Orders.PaidDate ;

示例数据：

第1行     “PaidDate”：“2015年8月17日”，     “总计”：7388.0，     “折扣”：38.0，     “NetTotal”：7363.0

第2行     “PaidDate”：“18-08-2015”，     “总计”：7388.0，     “折扣”：2.0，     “NetTotal”：7363.0

Answer 1

这样可行。

 SELECT TheOrderids.PaidDate, MAX(Price) AS Total 
        ,sum(theorderids.Discount) As Discount
        ,(MAX(Price) - sum(theorderids.Discount)) AS [Net Total]
From 
    (SELECT PaidDate ,SUM(Price ) AS Price 
     FROM Orders 
         WHERE Orders.PaidDate BETWEEN '8/17/2015' AND'8/19/2015' 
         GROUP BY Orders.PaidDate
    ) AS Orders
INNER JOIN theorderids ON Orders.PaidDate = theorderids.PaidDate 
GROUP BY theorderids.PaidDate 
ORDER BY theorderids.PaidDate ;

Answer 2

试试这种方式

SELECT Orders.PaidDate 
     , @pR AS Total 
     ,sum(theorderids.Discount) As Discount
     ,(@pR - sum(theorderids.Discount)) AS [Net Total] 
From 
    (SELECT ROW_NUMBER() OVER(ORDER BY Orders.PaidDate ) AS Row, OrderId, PaidDate 
     FROM Orders 
     WHERE Orders.PaidDate BETWEEN '8/17/2015' AND'8/18/2015' 
     GROUP BY Orders.OrderId, Orders.PaidDate) AS Orders
INNER JOIN theorderids ON Orders.OrderId = theorderids.ID 
GROUP BY Orders.PaidDate ;