Devi prima UNPIVOT le nostre colonne e usa DENSE_RANK() per darti qualcosa su cui basarti in seguito. Inserisci questo risultato in una tabella temporanea in modo da poter ottenere un elenco separato da virgole del DESNSE_RANK colonne. Quindi crea un UNION in modo che Day e Date fanno parte della stessa colonna di ciò che era unpivoted. Questo può essere inserito in una tabella temporanea globale per l'uso nell'SQL dinamico. Crea una variabile che memorizzerà l'elenco di colonne e costruirà l'SQL dinamico e lo eseguirà.
Un esempio completo (ovviamente non perdere il PhaseFlowChart tabella)
-- 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)
