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Pivot Table With Multiple Column Aggregates

CREATE TABLE #DoublePivot
(      [ID] INT IDENTITY(1,1) NOT NULL,
       [UserID] INT NOT NULL,
       [SomeType] INT NOT NULL,
       [NumberA] INT NOT NULL,
       [NumberB] INT NOT NULL,
       [Created] DATETIME NOT NULL DEFAULT(getdate())
)

INSERT INTO #DoublePivot
       (      UserID, SomeType, NumberA, NumberB )
       VALUES
       (      1, 1, 20, 10 ),
       (      1, 2, 50, 20 ),
       (      1, 1, 10, 0),
       (      2, 1, 10, 10),
       (      2, 2, 10, 40),
       (      1, 1, 20, 20),
       (      2, 2, 20, 70);

SELECT * FROM #DoublePivot order by UserID, SomeType

SELECT UserID, SomeType, SUM(NumberA) as SumNumberA, SUM(NumberB) as SumNumberB FROM #DoublePivot Group by UserID, SomeType order by UserID, SomeType
                                 
       SELECT UserID,
                     MAX([1]) AS SomeType1_NumberA,
                     MAX([-1]) AS SomeType1_NumberB,
                     MAX([2]) AS SomeType1_NumberB ,
                     MAX([-2]) AS SomeType2_NumberB
       FROM
                     (      SELECT UserID,
                                         SomeType,
                                         (-* SomeType) as SomeTypeB,
                                         SUM(NumberA) AS NumberA,
                                         SUM(NumberB) AS NumberB
                           FROM #DoublePivot
                           GROUP BY UserID, SomeType
                     )  BaseTable
                     PIVOT
                     (      SUM(NumberA)
                           FOR SomeType IN ([1], [2])
                     ) AS PivotA
                     PIVOT
                     (      SUM(NumberB)
                           FOR SomeTypeB IN ([-1], [-2])
                     ) AS PivotB
       GROUP BY UserID

DROP TABLE #DoublePivot

*  (-1 * SomeType) - in order to set a new "base" column to the second pivot summary.



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