SQL服務器 - 獲取僅在線購買的客戶的行

Question

我有一個包含客戶交易數據的表（TransactionData）和一個包含通訊訂戶的客戶的表（訂戶）。這是我需要做的。

從TransactionData表中選擇也在Subscribers表中並且僅在線購買產品（StoreID = 50001）的所有訂戶。

這兩個表的唯一鍵是客戶的電子郵件地址。

這是基本的表結構。

TransactionData 
Email    StoreID OrderID 
customer1@mail.com 50001 101 
customer1@mail.com 50001 102 
customer2@mail.com 50001 201 
customer2@mail.com 51111 202 
customer3@mail.com 50001 301 
customer3@mail.com 50001 302 


Subscribers 
Email 
customer1@mail.com 
customer2@mail.com 


Desired result 
Email    StoreID 
customer1@mail.com 50001 

這是迄今爲止我的查詢：

SELECT b.Email, b.StoreID 
FROM TransactionData AS a 
INNER JOIN Subscribers AS b 
ON a.Email = b.Email 
WHERE a.BoutiqueId = 50001 

我無法弄清楚如何排除那些已經購買了在網上和商店的客戶。你能幫助我嗎？

Answer 1

SELECT t.Email , t.StoreID 
FROM TransactionData t 
WHERE EXISTS (SELECT 1 
       FROM Subscribers 
       WHERE t.Email = Email) 
AND NOT EXISTS (SELECT 1 
       FROM TransactionData 
       WHERE t.Email = Email 
       AND StoreID <> 50001) 
GROUP BY t.Email , t.StoreID 

Answer 2

您可以使用except返回誰只是做了一個在線購買（botiqueid = 50001）的客戶

SELECT b.Email, b.StoreID 
FROM TransactionData AS a 
INNER JOIN Subscribers AS b 
ON a.Email = b.Email 
WHERE a.BoutiqueId = 50001 
EXCEPT 
SELECT b.Email, b.StoreID 
FROM TransactionData AS a 
INNER JOIN Subscribers AS b 
ON a.Email = b.Email 
WHERE a.BoutiqueId <> 50001 

Answer 3

試試這個：

SELECT 
    a.Email, a.StoreID 
FROM 
    TransactionData AS a 
     INNER JOIN 
    Subscribers AS b ON a.Email = b.Email 
WHERE 
    a.StoreID = 50001 
GROUP BY a.Email 

Answer 4

declare @TransactionData TABLE 
    ([Email] varchar(18), [StoreID] int, [OrderID] int) 
; 

INSERT INTO @TransactionData 
    ([Email], [StoreID], [OrderID]) 
VALUES 
    ('customer1@mail.com', 50001, 101), 
    ('customer1@mail.com', 50001, 102), 
    ('customer2@mail.com', 50001, 201), 
    ('customer2@mail.com', 51111, 202), 
    ('customer3@mail.com', 50001, 301), 
    ('customer3@mail.com', 50001, 302) 
; 


declare @Subscribers TABLE 
    ([Email] varchar(18)) 
; 

INSERT INTO @Subscribers 
    ([Email]) 
VALUES 
    ('customer1@mail.com'), 
    ('customer2@mail.com') 
; 

select T.Email,T.StoreID from @TransactionData T 
INNER JOIN @Subscribers TT 
ON TT.Email = T.Email 
WHERE NOT EXISTS (SELECT 1 
       FROM @TransactionData 
       WHERE t.Email = Email 
       AND StoreID <> 50001) 
GROUP BY T.Email,T.StoreID 

Answer 5

你可以使用GROUP BY

SELECT 
EMail, MIN(StoreID) AS StoreID 
FROM TransactionData 
GROUP BY EMail HAVING SUM(CASE WHEN StoreID = 50001 THEN 0 ELSE 1 END) = 0 

Answer 6

那麼這就是我所做的。

將您的「有效」數據保存在從TransactionData與Subscribers表內部連接的臨時表中。

SELECT 
    a.Email 
    , a.OrderID 
    , a.StoreID 
INTO #tmpValidCustomers 
FROM TransactionData AS a 
INNER JOIN Subscribers AS b 
ON 
    a.Email = b.Email 

正確的，這應該是結果

然後，使用臨時表從自身來驗證。我創建了2種類型的列，一列用於標識您的在線商店中購買的此電子郵件，另一列是您標識的此電子郵件不是從您的在線商店購買的。

SELECT 
     Email 
     , OrderID 
     , StoreID 
     , (SELECT TOP 1 OrderID FROM #tmpValidCustomers WHERE Email = v.Email and StoreID = 50001) AS [Cond1] 
     , (SELECT TOP 1 OrderID FROM #tmpValidCustomers WHERE Email = v.Email and StoreID <> 50001) AS [Cond2] 
    FROM #tmpValidCustomers v 

，這應該是這個結果

現在，什麼左邊是過濾所有不同的電子郵件ID的其中僅誰在你的網上商店購買。執行上表中的外部選擇。

SELECT 
    DISTINCT 
     Email 
     , StoreID 
FROM (
    SELECT 
     Email 
     , OrderID 
     , StoreID 
     , (SELECT TOP 1 OrderID FROM #tmpValidCustomers WHERE Email = v.Email and StoreID = 50001) AS [Cond1] 
     , (SELECT TOP 1 OrderID FROM #tmpValidCustomers WHERE Email = v.Email and StoreID <> 50001) AS [Cond2] 
    FROM #tmpValidCustomers v 
) AS T 
WHERE 
    T.Cond1 IS NOT NULL AND T.Cond2 IS NULL 

編輯：我的歉意，它可以通過這種方式單獨完成。

SELECT DISTINCT 
    a.Email 
    , a.StoreID 
FROM TransactionData AS a 
INNER JOIN Subscribers AS b 
ON 
    a.Email = b.Email 
WHERE 
    a.Email NOT IN (SELECT Email FROM #TransactionData WHERE StoreID <> 50001)