Question

对ProductID订单进行分组，按ProductID获取总计，订单总数以及代表总订单的ProductID订单（即百分比）。所需列：PercenofTotal（UnitPrice * Quantity），TotalAmount（UnitPrice * Quantity），PercentofTheTotal（UnitPrice * Quantity）

所以这是我的代码，我不知道的是执行percentofTheTotal和TotalAmount

SELECT P.ProductID, (P.UnitPrice * ODQuantity) AS tOTALaMOUNTByProductID, (P.UnitPrice * Quantity) as TotalAmount , (P.UnitPrice * OD.Quantity) as PercenofTotal 
From Products as P,
From OrderDetails as OD
Group by P.ProductID

Answer 1

你正在尝试用不正确的简单陈述做一些复杂的事情。这样的事情可能会做你想要达到的目标。

USE AdventureWorks2014
GO

SELECT  P.ProductID
       , SUM(P.StandardCost * OD.OrderQty) AS TotalAmountByProductID
       , MAX(SumTA.TotalAmount) AS TotalAmount 
       , (SUM(P.StandardCost * OD.OrderQty) / (MAX(SumTA.TotalAmount))*100) AS PercentOfTotal
FROM Production.Product as P
INNER JOIN Sales.SalesOrderDetail as OD on P.ProductID = OD.ProductID
LEFT OUTER JOIN (
                   SELECT max(pid) as pid, SUM(TA.TotalAmount) as TotalAmount
                    FROM
                       (  SELECT  '1' as pid, P.ProductID, SUM(P.StandardCost * OD.OrderQty) AS TotalAmount
                         FROM Production.Product as P
                         JOIN Sales.SalesOrderDetail as OD on P.ProductID = OD.ProductID
                          Group by P.ProductID
                       )AS TA
                ) AS SumTA ON SumTA.pid = '1'

Group by P.ProductID
ORDER BY PercentOfTotal Desc

嗨我有一些使用*的T-SQL的问题

1 个答案: