SQL Server PIVOT Column Data

Question

I have a table with data as given below:

DATE            Price
----------      ------
31/12/2009  10
31/12/2009  11
31/12/2009  12
30/12/2009  20
30/12/2009          


        

Answer 1

OK, as I mentioned, your data does not make sense, but maybe this can help.

The only way to create a dynamic pivot, is by creating dynamic sql.

Also, PIVOT requires that you use an Aggregate function (SUM, AVG, COUNT).

Ok, let see if this can help you.

CREATE TABLE #TEMP  (EffectiveDate DATETIME,Price INT) 
INSERT INTO #TEMP(EffectiveDate,Price) 
SELECT GETDATE(),10 
UNION ALL 
SELECT GETDATE(),11 
UNION ALL 
SELECT GETDATE(),12 
UNION ALL 
SELECT GETDATE()-1,20 
UNION ALL 
SELECT GETDATE()-1,21 
UNION ALL 
SELECT GETDATE()-1,22 
UNION ALL 
SELECT GETDATE()-2,30 
UNION ALL 
SELECT GETDATE()-2,32 
UNION ALL 
SELECT GETDATE()-2,31 

DECLARE @Cols VARCHAR(MAX)
SELECT @cols = COALESCE(@cols + ',[' + colName + ']',
                         '[' + colName + ']')
FROM    (
            SELECT DISTINCT 
                    CONVERT(VARCHAR,EffectiveDATE,103) colName
            FROM    #TEMP
        ) s
ORDER BY colName DESC

DECLARE @query VARCHAR(MAX)
SET @query = N'SELECT *
FROM
(SELECT CONVERT(VARCHAR,EffectiveDATE,103) AS ''DATE'',Price
            FROM    #TEMP) p
PIVOT
(
SUM(Price) FOR DATE IN
( '+
@cols +' )
) AS pvt' 

EXECUTE(@query)


DROP TABLE #TEMP