Sql server 如何将这些SQL Server结果按每个客户密钥压缩成一行
我已成功地将客户最新的营销偏好收集到以下表格中,但不知道如何将这些结果压缩到每个Sql server 如何将这些SQL Server结果按每个客户密钥压缩成一行,sql-server,merge,unique,Sql Server,Merge,Unique,我已成功地将客户最新的营销偏好收集到以下表格中,但不知道如何将这些结果压缩到每个[CustomerKey]的一行中。这里有一个例子,显然,当我运行下面的查询时,我们有成千上万的实际结果 CustomerKey SMS Phone Email Post Group -------------------------------------------------------------- ClarkeM21-9EF1976-08-03
[CustomerKey]
的一行中。这里有一个例子,显然,当我运行下面的查询时,我们有成千上万的实际结果
CustomerKey SMS Phone Email Post Group
--------------------------------------------------------------
ClarkeM21-9EF1976-08-03 No
ClarkeM21-9EF1976-08-03 No
ClarkeM21-9EF1976-08-03 No
ClarkeM21-9EF1976-08-03 No
ClarkeM21-9EF1976-08-03 No
SmithNG12-8AS1980-02-03 No
SmithNG12-8AS1980-02-03 No
SmithNG12-8AS1980-02-03 Yes
SmithNG12-8AS1980-02-03 No
SmithNG12-8AS1980-02-03 Yes
这是我用来创建上述内容的一个相当重复的查询,以防有人看到它并认为我是从完全错误的角度得出的
IF OBJECT_ID('tempdb..#ClientRefPreferenceDates') IS NOT NULL
DROP TABLE #ClientRefPreferenceDates;
IF OBJECT_ID('tempdb..#MaxDatePerClientRef') IS NOT NULL
DROP TABLE #MaxDatePerClientRef;
IF OBJECT_ID('tempdb..#LatestPrefsbyCustKey') IS NOT NULL
DROP TABLE #LatestPrefsbyCustKey;
SELECT
mcp.[CustomerKey],
mcp.[SMS],
MAX(mcp.[SMS_DateTime]) AS SMSDate,
'' AS Phone,
'' AS PhoneDate,
'' AS Email,
'' AS EmailDate,
'' AS Post,
'' AS PostDate,
'' AS [Group],
'' AS GroupDate
INTO
#ClientRefPreferenceDates
FROM
[audit].[Marketing_Consent_Prefs] mcp
WHERE
mcp.[EndDate] IS NULL
GROUP BY
CustomerKey, SMS
UNION ALL
SELECT
mcp.[CustomerKey],
'' AS SMS,
'' AS SMSDate,
mcp.[Phone],
Max(mcp.[Phone_DateTime]) AS PhoneDate,
'' AS Email,
'' AS EmailDate,
'' AS Post,
'' AS PostDate,
'' AS [Group],
'' AS GroupDate
FROM
[audit].[Marketing_Consent_Prefs] mcp
WHERE
mcp.[EndDate] IS NULL
GROUP BY
CustomerKey, Phone
UNION ALL
SELECT
mcp.[CustomerKey],
'' AS SMS,
'' AS SMSDate,
'' AS Phone,
'' AS PhoneDate,
mcp.Email,
MAX(mcp.[Email_DateTime]) AS EmailDate,
'' AS Post,
'' AS PostDate,
'' AS [Group],
'' AS GroupDate
FROM
[audit].[Marketing_Consent_Prefs] mcp
WHERE
mcp.[EndDate] IS NULL
GROUP BY CustomerKey, Email
UNION ALL
SELECT mcp.[CustomerKey],
'' AS SMS,
'' AS SMSDate,
'' AS Phone,
'' AS PhoneDate,
'' AS Email,
'' AS EmailDate,
mcp.Post,
Max(mcp.[Post_DateTime]) AS PostDate,
'' AS [Group],
'' AS GroupDate
FROM [audit].[Marketing_Consent_Prefs] mcp
WHERE mcp.[EndDate] IS NULL
GROUP BY CustomerKey, Post
UNION ALL
SELECT mcp.[CustomerKey],
'' AS SMS,
'' AS SMSDate,
'' AS Phone,
'' AS PhoneDate,
'' AS Email,
'' AS EmailDate,
'' AS Post,
'' AS PostDate,
mcp.[Group],
Max(mcp.[Group_DateTime]) AS GroupDate
FROM [audit].[Marketing_Consent_Prefs] mcp
WHERE mcp.[EndDate] IS NULL
GROUP BY CustomerKey, [Group]
SELECT CustomerKey,
SMS,
Phone,
Email,
Post,
[Group]
FROM #ClientRefPreferenceDates
GROUP BY CustomerKey, SMS, Phone, Email, Post, [Group]
ORDER BY CustomerKey
最简单的方法是将您的查询包装到另一个
分组中
SELECT CustomerKey, MAX(SMS), MAX(Phone), MAX(Email), MAX(Post), MAX(Group)
FROM (
your query
) a
GROUP BY CustomerKey
窗口功能应该可以做到这一点
SELECT distinct
mcp.[CustomerKey],
mcp.[SMS],
Max(mcp.[SMS_DateTime]) over (partition by CustomerKey, SMS) AS SMSDate,
Max(mcp.[Phone_DateTime]) over (partition by CustomerKey, Email) AS PhoneDate
INTO #ClientRefPreferenceDates
FROM [audit].[Marketing_Consent_Prefs] mcp
WHERE mcp.[EndDate] IS NULL
GROUP BY
还可以向我们展示示例输入数据和预期输出(如果当前输出不是您想要的)。