如何對應列添加到PIVOT數據集

Question

使用Microsoft SQL Server 2012

我有一個表：

PartID |TypeSet | Setting | ObservID |TransDate 
--------------------------------------------- 
1   A 456  12 10/20/2015 
1   A 377  12 10/20/2015 
1   A 425  12 10/20/2015 
1   A 665  12 10/20/2015 
1   A 543  12 10/20/2015 
1   A 554  12 10/20/2015 
1   B 34  41 10/21/2015 
1   B 27  41 10/21/2015 
1   B 27  41 10/21/2015 
1   B 29  41 10/21/2015 
1   C 1299  12 10/20/2015 
1   C 1227  12 10/20/2015 

我想顯示爲以下。單行按PartID分組。

PartID | A Avg | B Avg | C Avg | A ObservID | B ObservID | C ObservID 
--------------------------------------------------------------------- 
    1  503  29  1263  12    41   12 

我不能讓ObservIDs顯示不創建多行返回數據集。我與A，B和C的平均這個查詢沒有問題：

SELECT  
     PartID 
     ,[A] as 'A Average' 
     ,[B] as 'B Average' 
     ,[C] as 'C Average' 
    -- ,(ObservID) 
    --,CASE WHEN [A] = 'A Average' THEN max([ObservID]) END as 'A Ob' 
    --,CASE WHEN [B] = 'B Average' THEN max([ObservID]) END as 'B Ob' 
    -- ,CASE WHEN [C] = 'C Average' THEN max([ObservID]) END as 'C Ob' 
FROM 
(SELECT 
    PartID 
    ,TypeSet 
    ,Setting 
    --,ObservID 
    FROM #Temp1 
    ) as MeasData 
PIVOT 
(
    AVG(Setting) 
    FOR [TypeSet] in 
     ([A], [B], [C])  
) as PivotTable 

您可以在我試圖讓ObservID的，但是當我取消這些線路，發生錯誤上面的查詢看看。一些注意事項：ObservIDs將保持每個TypeSet一致。

這裏的數據：

create table #Temp1 
(
    PartID INT 
, TypeSet VARCHAR(10) 
, Setting INT 
, ObservID INT 
, TransDate Date 
) 

INSERT INTO #Temp1(PartID, TypeSet, Setting, ObservID, TransDate) VALUES 
    (1, 'A', 456, 12, '10/20/2015'), 
    (1, 'A', 377, 12, '10/20/2015'), 
    (1, 'A', 425, 12, '10/20/2015'), 
    (1, 'A', 665, 12, '10/20/2015'), 
    (1, 'A', 543, 12, '10/20/2015'), 
    (1, 'A', 554, 12, '10/20/2015'), 
    (1, 'B', 34, 41, '10/21/2015'), 
    (1, 'B', 27, 41, '10/21/2015'), 
    (1, 'B', 27, 41, '10/21/2015'), 
    (1, 'B', 29, 41, '10/21/2015'), 
    (1, 'C', 1299, 12, '10/20/2015'), 
    (1, 'C', 1227, 12, '10/20/2015') 

是我想要的輸出可能與PIVOT操作？或者我應該爲每個Typeset在桌子上走多個JOIN？

Answer 1

可以使用有條件聚集做到這一點：

SELECT PartID, 
    AVG(CASE WHEN TypeSet = 'A' THEN Setting END) AS 'A Avg', 
    AVG(CASE WHEN TypeSet = 'B' THEN Setting END) AS 'B Avg', 
    AVG(CASE WHEN TypeSet = 'C' THEN Setting END) AS 'C Avg', 
    MAX(CASE WHEN TypeSet = 'A' THEN ObservID END) AS 'A ObservID', 
    MAX(CASE WHEN TypeSet = 'B' THEN ObservID END) AS 'B ObservID', 
    MAX(CASE WHEN TypeSet = 'C' THEN ObservID END) AS 'C ObservID' 
FROM #Temp1 
GROUP BY PartID 

Answer 2

WITH avgPivot AS 
(
    SELECT 
     PartID,[a] as A_Avg,[b] as B_Avg,[c] as C_Avg 
    FROM 
    (
    SELECT PartID, TypeSet, Setting, ObservID 
    FROM #Temp1 
) As S 
    PIVOT 
    (
    AVG(Setting) 
    FOR TypeSet in([a],[b],[c]) 
) 
    AS pvt 
), 
maxPivot AS 
(
    SELECT 
     [a] as A_ObservID, [B]B_ObservID, [c] as c_ObservID 
    FROM 
    (
    SELECT PartID, TypeSet, Setting, ObservID 
    FROM #Temp1 
) As S 
    PIVOT 
    (
    max(ObservID) 
    FOR TypeSet in([a],[b],[c]) 
) 
    AS pvt 
) 

SELECT distinct * 
FROM avgPivot M 
cross JOIN maxPivot A