SQL Server 2008 R2 - Dynamisch draaien/draaien met (bewegende) datums

U moet eerst UNPIVOT onze kolommen en gebruik DENSE_RANK() om je later iets te geven om op te draaien. Zet dit resultaat in een tijdelijke tabel zodat u een door komma's gescheiden lijst kunt krijgen van de DESNSE_RANK kolommen. Maak dan een UNION zodat Day en Date maken deel uit van dezelfde kolom als wat niet-gedraaid was. Dit kan in een globale temp-tabel worden geplaatst voor gebruik in de dynamische SQL. Maak een variabele die de lijst met kolommen zal opslaan en de dynamische SQL zal bouwen en uitvoeren.

Een volledig voorbeeld (laat de PhaseFlowChart natuurlijk niet vallen tafel)

-- pre-cleanup
IF OBJECT_ID('[dbo].[PhaseFlowChart]') IS NOT NULL
    DROP TABLE [dbo].[PhaseFlowChart]
GO

IF OBJECT_ID('tempdb..#tmp') IS NOT NULL
    DROP TABLE #tmp
GO

IF OBJECT_ID('tempdb..##tmp') IS NOT NULL
    DROP TABLE ##tmp
GO

-- setup table and data
CREATE TABLE [dbo].[PhaseFlowChart](
    [pfckey] [int] NULL,
    [hourlykey] [bigint] NULL,
    [daykey] [bigint] NULL,
    [weekkey] [int] NULL,
    [monthkey] [int] NULL,
    [bbkey] [int] NULL,
    [Day] [varchar](100) NULL,
    [Date] [varchar](100) NULL,
    [Bull Bear Gap] [varchar](100) NULL,
    [Monthly] [varchar](100) NULL,
    [Weekly] [varchar](100) NULL,
    [Daily] [varchar](100) NULL,
    [Hour 1] [varchar](100) NULL,
    [Hour 2] [varchar](100) NULL,
    [Hour 3] [varchar](100) NULL,
    [Hour 4] [varchar](100) NULL,
    [Hour 5] [varchar](100) NULL,
    [Hour 6] [varchar](100) NULL,
    [Hour 7] [varchar](100) NULL
) ON [PRIMARY]

INSERT INTO [dbo].PhaseFlowChart 
    ([Day], [Date], [Bull Bear Gap], Monthly, Weekly, Daily, 
        [Hour 1], [Hour 2], [Hour 3], [Hour 4], [Hour 5], [Hour 6], [Hour 7])
VALUES
('MON', '20130101', 'P1', 'P1', 'P1', 'P1', 'P1', 'P1', 'P1', 'P1', 'P1', 'P1', 'P1'),
('TUE', '20130102', 'P2', 'P2', 'P2', 'P2', 'P2', 'P2', 'P2', 'P2', 'P2', 'P2', 'P2'),
('WED', '20130103', 'P3', 'P3', 'P3', 'P3', 'P3', 'P3', 'P3', 'P3', 'P3', 'P3', 'P3'),
('THU', '20130104', 'P4', 'P4', 'P4', 'P4', 'P4', 'P4', 'P4', 'P4', 'P4', 'P4', 'P4'),
('FRI', '20130105', 'P5', 'P5', 'P5', 'P5', 'P5', 'P5', 'P5', 'P5', 'P5', 'P5', 'P5'),
('SAT', '20130106', 'P6', 'P6', 'P6', 'P6', 'P6', 'P6', 'P6', 'P6', 'P6', 'P6', 'P6'),
('SUN', '20130107', 'P7', 'P7', 'P7', 'P7', 'P7', 'P7', 'P7', 'P7', 'P7', 'P7', 'P7')
GO

-- unpivot the columns into 'categories'
SELECT [Day], [Date], [Value], [Category], 
    DENSE_RANK() OVER (ORDER BY CAST([Date] AS DATE)) dr 
INTO #tmp
FROM PhaseFlowChart pfc
UNPIVOT (
    Value FOR Category IN ([Bull Bear Gap], Monthly, Weekly, Daily, 
                            [Hour 1], [Hour 2], [Hour 3], [Hour 4], 
                                [Hour 5], [Hour 6], [Hour 7])

) upiv

-- create a global temp table for use later
SELECT *
INTO ##tmp
FROM (
      -- union data into single category column
    SELECT 'Day' Category, [Day] Value, dr, 1 o FROM #tmp
    UNION ALL
    SELECT 'Date' Category, [Date] Value, dr, 2 o FROM #tmp
    UNION ALL
    SELECT [Category], Value, dr, 3 o FROM #tmp
) t

-- get a comma seperated list of columns for the PIVOT
DECLARE @cols VARCHAR(MAX) = 
STUFF(CAST((SELECT ',' + QUOTENAME(dr)
       FROM (
           SELECT DISTINCT dr
           FROM #tmp
       ) t
       ORDER BY dr
       FOR XML PATH(''), TYPE
      ) AS VARCHAR(MAX)),1,1,'')

-- create and execute the sql
DECLARE @sql VARCHAR(MAX) = '
    SELECT Category, ' + @cols + '
    FROM ##tmp
    PIVOT (
        MAX([Value])
        FOR dr IN (' + @cols + ')
    ) piv   
      ORDER BY o, CASE Category 
                    WHEN ''Daily'' THEN 4
                    WHEN ''Weekly'' THEN 3
                    WHEN ''Monthly'' THEN 2
                    WHEN ''Bull Bear Gap'' THEN 1
                    ELSE 5 END, Category
'

EXEC(@sql)