SQL server–获取仅在线购买的客户的行

我有一个表TransactionData，其中包含客户的交易数据，还有一个表订阅者，其中包含时事通讯订阅者。这就是我需要做的

从TransactionData表中选择也在subscribers表中且仅购买了产品online StoreID=50001的所有订户

这两个表的唯一键是客户电子邮件地址

这是基本的表结构

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

这是我目前的疑问：

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

我不知道如何排除在网上和店内购买的客户。您能帮我做一下吗？

您可以使用除此之外的方法，该方法返回仅在线购买botiqueid=50001的客户

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

试试这个：

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

你可以分组

---

我就是这么做的

将有效数据保存在临时表中，临时表已从TransactionData与Subscribers表内部联接

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

对,这应该是结果

然后，使用此临时表从自身进行验证。我创建了两种类型的专栏，一种是你在网上商店中购买这封电子邮件的专栏，另一种是你在网上商店中购买这封电子邮件的专栏

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

这应该是结果

现在，剩下的是过滤所有只在你的在线商店购买的不同的电子邮件ID。从上表执行外部选择

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

编辑：我很抱歉，这可以单独完成

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)

---

您如何确定是否在线购买？您正在从订阅者表中选择StoreID，但在“基本表结构”中没有StoreID？@jarlh..当然..为了更快的查询响应。exceptand intersect没有任何all修饰符，只有union有。哇，这是我有史以来的第一篇帖子，我将尝试您的所有建议！谢谢！！：@SatenderK查询不会产生所需的结果，因此否决票是合理的。如果你想摆脱我的反对票，而不是玛丽纳斯的反对票，请更正或删除答案。谢谢！你能告诉我怎么做吗？如果我想从TransactionData中排除所有在线购买50001的用户？

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

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

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)