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Pivot Query

Posted on 2013-11-17
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Last Modified: 2013-11-17
Can someone help me with a pivot query for the attached dataset.

Thanks in advance.
primarykeys.xlsx
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Question by:sherbug1015
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Sharath earned 500 total points
ID: 39655122
If you know the number of positions, you can try like this.
SELECT TableName, 
       [1] as primarykeycolumn1,
	   [2] as primarykeycolumn2,
	   [3] as primarykeycolumn3
  FROM Test
 PIVOT (MAX(primarykeycolumn1) FOR position IN ([1],[2],[3])) AS p

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if the no. of positions are unknown, you can try dynamic sql.
DECLARE @sql VARCHAR(8000),@select VARCHAR(8000)
SET @sql = (SELECT DISTINCT ',[' + CONVERT(NVARCHAR(10),position) + ']' from Test for xml PATH('')) 
SET @select = (SELECT DISTINCT ',[' + CONVERT(NVARCHAR(10),position) + '] AS primarykeycolumn' + CONVERT(NVARCHAR(10),position) from Test for xml PATH('')) 
SET @sql = '
SELECT TableName' + @select + '
  FROM Test
 PIVOT (MAX(primarykeycolumn1) FOR position IN (' + SUBSTRING(@sql,2,LEN(@sql)) + ')) AS p'
EXEC(@sql)

Open in new window


http://sqlfiddle.com/#!3/53bc8/18
http://sqlfiddle.com/#!3/53bc8/16
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