SQL Dynamic Pivot without aggregate

Question

我发现了一些与我需要的东西类似的东西，但我无法围绕如何将它带到需要的地方。

这有助于确定的：simple(?) PIVOT without an aggregate

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这里是我当前的查询：

SELECT [1] AS Lien1 
    ,[2] AS Lien2 
    ,[3] AS Lien3 
    ,[4] AS Lien4 
    ,[5] AS Lien5 
    ,[6] AS Lien6 
FROM (SELECT lt.Name AS [LienName] 
      -- ,LienID 
       ,ROW_NUMBER() OVER (ORDER BY LienID) AS RN 
     FROM  dbo.Lien AS L 
       INNER JOIN dbo.LienType AS LT ON LT.LienTypeID = L.LienTypeID 
     WHERE  FileID = 528267 
    ) AS PivotSource PIVOT 

(MAX(LienName) FOR RN IN ([1], [2], [3], [4], [5], [6])) piv 

它返回的结果如下：

Lien1 Lien2 Lien3 Lien4 Lien5 Lien6 
Deed of Trust Assignment Appointment of Substitute Trustee Assignment Assignment Civil Foreclosure Case 

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我需要commente d行（ - LienID）不会被注释掉，并在相应的LienName之后返回LienID，例如（为了格式化目的，我删除了最后四列）。

Lien1   LienID Lien2  LienID  
Deed of Trust 123 Assignment 234  

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也许Pivot是不能做到这一点的最好办法，但它是我迄今发现的最好的。我有5个表返回多行，我需要返回一行上的所有值。我一直在尝试理解这里的动态SQL数据透视问题，但是我一直无法执行一个来执行我需要执行的方式。

我接受任何和所有的建议，这将有助于 - 在此先感谢您的时间！

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编辑：14年11月4日@ 10：47AM

我想回来，并张贴在正在进行的工作，因为我已经把这个答案到了一些动态查询的内容。

DECLARE @FileID INT = 528267 
DECLARE @Cols NVARCHAR(MAX) 
DECLARE @query NVARCHAR(MAX) 

SELECT @cols = STUFF((SELECT ',' + QUOTENAME('LienNumber' + CONVERT(VARCHAR,  ROW_NUMBER() OVER (ORDER BY SortOrder))) 
        FROM  dbo.Lien AS L 
          INNER JOIN dbo.LienType AS LT ON LT.LienTypeID = L.LienTypeID 
          INNER JOIN dbo.FileActions AS FA ON fa.FileID = l.FileID 
                   AND fa.ActionDefID = 1184 
                   AND fa.SentDate IS NOT NULL 
                   AND fa.ReceivedDate IS NULL 
                   AND fa.FileID = @FileID 
    FOR   XML PATH('') 
        ,TYPE 
     ).value('.', 'NVARCHAR(MAX)'), 1, 1, '') 



SET @Query = 'DECLARE @FileID INT = 528267 SELECT ' + @cols + ' 
     FROM (select lt.name as Name, ''LienNumber'' + CONVERT(VARCHAR, ROW_NUMBER() OVER (ORDER BY SortOrder)) as RN 
    FROM 

     dbo.Lien AS L 
       INNER JOIN dbo.LienType AS LT ON LT.LienTypeID = L.LienTypeID 
       INNER JOIN dbo.FileActions AS FA ON fa.FileID = l.FileID 
                AND fa.ActionDefID = 1184 
                AND fa.SentDate IS NOT NULL 
                AND fa.ReceivedDate IS NULL 
                   AND fa.FileID = @FileID 

              ) x 
              pivot (  MAX(name) FOR RN IN (' + @Cols + ')) p' 




EXEC (@query) 

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的帮助下：Convert Rows to columns using 'Pivot' in SQL Server

Answer 1

如果我理解你的期望输出正确的，我认为这个查询应该这样做，请试一试：

SELECT 
    Lien1 = MAX([1]), 
    LienID = MAX([r1]), 
    Lien2 = MAX([2]), 
    LienID = MAX([r2]), 
    Lien3 = MAX([3]), 
    LienID = MAX([r3]), 
    Lien4 = MAX([4]), 
    LienID = MAX([r4]), 
    Lien5 = MAX([5]), 
    LienID = MAX([r5]), 
    Lien6 = MAX([6]), 
    LienID = MAX([r6]) 
FROM ( 
    SELECT 
     lt.Name AS [LienName] 
     ,LienID 
     ,ROW_NUMBER() OVER (ORDER BY LienID) AS RN1 
     ,'r'+CAST(ROW_NUMBER() OVER (ORDER BY LienID) AS varchar(10)) AS RN2 
    FROM Lien AS L 
    INNER JOIN LienType AS LT ON LT.LienTypeID = L.LienTypeID 
    WHERE FileID = 528267 
    ) AS PivotSource 
PIVOT (MAX(LienName) FOR RN1 IN ([1], [2], [3], [4], [5], [6])) as names 
PIVOT (MAX(LienID) FOR RN2 IN ([r1], [r2], [r3], [r4],[r5],[r6])) as ids 

Answer 2

你快到了这一点。查询的另一个副本，在ID上旋转，然后通过fileID重新加入，应该可以做到。这里是SQLFiddle。

SELECT 
    a.FileID 
    ,a.Lien1 
    ,b.LienID1 
    ,a.Lien2 
    ,b.LienID2 
    ,a.Lien3 
    ,b.LienID3 
    ,a.Lien4 
    ,b.LienID4 
    ,a.Lien5 
    ,b.LienID5 
    ,a.Lien6 
    ,b.LienID6 
FROM (
    SELECT 
     FileID 
    ,[1] AS Lien1 
    ,[2] AS Lien2 
    ,[3] AS Lien3 
    ,[4] AS Lien4 
    ,[5] AS Lien5 
    ,[6] AS Lien6 
    FROM (SELECT 
        FileID 
       ,LienName 
       ,ROW_NUMBER() OVER (ORDER BY LienID) AS RN 
     FROM  dbo.Lien AS L 

     WHERE  FileID = 528267 
    ) AS PivotSource 
    PIVOT (MAX(LienName) FOR RN IN ([1], [2], [3], [4], [5], [6])) piv1 
) a 
    INNER JOIN (
    SELECT 
     FileID 
    ,[1] AS LienID1 
    ,[2] AS LienID2 
    ,[3] AS LienID3 
    ,[4] AS LienID4 
    ,[5] AS LienID5 
    ,[6] AS LienID6 
    FROM (SELECT 
        FileID 
       ,LienID 
       ,ROW_NUMBER() OVER (ORDER BY LienID) AS RN 
     FROM  dbo.Lien AS L 

     WHERE  FileID = 528267 
    ) AS PivotSource 
    PIVOT (MAX(LienID) FOR RN IN ([1], [2], [3], [4], [5], [6])) piv1 
) b ON a.FileID = b.FileID