SQL Server;試圖加入三個表，彙總和分組結果

Question

我是新來的SQL ...

我有以下三個表工作：

表：廣告系列

Campaign SourcePhone StartDate EndDate 
A   1112223333 20140303 20140309 
B   2223334444 20140303 20140309 
C   1112223333 20140310 20140316 
D   3334445555 20140217 20150217 

表：PhoneMapping（將來自Campaigns的SourcePhone映射到訂單表）

SourcePhone TransferToPhone 
1112223333 9998887777 
1112223333 8887776666 
2223334444 7776665555 
3334445555 6665554444 
3334445555 5554443333 

表：訂單

Date  TransferToPhone Orders 
20140304 9998887777  3 
20140304 8887776666  4 
20140304 6665554444  34 
20140305 7776665555  7 
20140305 9998887777  5 
20140306 9998887777  10 
20140306 8887776666  13 
20140307 8887776666  7 
20140309 7776665555  1 
20140311 9998887777  35 
20140313 8887776666  8 
20140315 9998887777  22 
20140305 6665554444  11 

我一直在試圖想出一個查詢，將加入這三個表，並提供以下結果。基本上，我需要爲每個廣告系列，SourcePhone＃，轉移到電話號碼和日期範圍（每個廣告系列的StartDate和EndDate之間）提供TotalOrders的總和。以下是我期待查詢提供的結果（我認爲我的數學是正確的）。任何幫助是極大的讚賞！

預期結果：

Campaign SourcePhone TransferToPhone StartDate EndDate  TotalOrders 
A   1112223333 9998887777  20140303 20140309 18 
A   1112223333 8887776666  20140303 20140309 24 
B   2223334444 7776665555  20140303 20140309 8 
C   1112223333 9998887777  20140310 20140316 57 
C   1112223333 8887776666  20140310 20140316 8 
D   3334445555 6665554444  20140217 20150217 45 

這裏是我試過了，但它並不羣基礎上的日期範圍內的數據：

SELECT C.Campaign, C.SourcePhone, PM.TransferToPhone, C.StartDate , C.EndDate, O.TotalOrders 
FROM Campaigns AS C 
    INNER JOIN 
     (SELECT SourcePhone, TransferToPhone 
      FROM   PhoneMapping 
      WHERE  (TransferToPhone IS NOT NULL)) AS PM ON C.SourcePhone = PM.SourcePhone 
      INNER JOIN 
      (SELECT  TransferToPhone, SUM(Orders) AS TotalOrders 
       FROM   Orders 
       WHERE  (Orders IS NOT NULL) 
       Group by TransferToPhone) AS O ON PM.TransferToPhone = O.TransferToPhone 

GROUP BY C.Campaign, C.SourcePhone, PM.TransferToPhone, C.StartDate , C.EndDate 

Answer 1

這是否讓你你需要什麼？

SELECT C.Campaign, 
     C.SourcePhone, 
     P.TransferToPhone, 
     C.StartDate, 
     C.EndDate, 
     SUM(O.TotalOrders) 
FROM Campaigns C 
    JOIN PhoneMapping P 
    ON C.SourcePhone = P.SourcePhone 
    JOIN Orders O 
    ON O.TransferToPhone = P.TransferToPhone 
GROUP BY C.Campaign, C.StartDate, C.EndDate, P.SourcePhone, P.TransferToPhone