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SQL PIVOT

Posted on 2013-02-04
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Last Modified: 2013-02-04
Say I have query that produces these results:

Current results
But I want to pivot the query to produce these results:

Desired results
-------------------------------------------------------------------------------------------------------------

CREATE TABLE tempdb.dbo.mh_pivot_candidate (
MyThingId INT NOT NULL,
Color1 VARCHAR(25) NULL,
Color2 VARCHAR(25) NULL,
Color3 VARCHAR(25) NULL,
Color4 VARCHAR(25) NULL,
Color5 VARCHAR(25) NULL
)

INSERT tempdb.dbo.mh_pivot_candidate VALUES (10, 'RED', 'WHITE', 'BLUE', 'GREEN', 'ORANGE')
INSERT tempdb.dbo.mh_pivot_candidate VALUES (20, 'WHITE', 'BLACK', 'GRAY', 'PURPLE', 'YELLOW')
INSERT tempdb.dbo.mh_pivot_candidate VALUES (30, 'RED', 'WHITE', 'BLUE', 'YELLOW', 'GRAY')
INSERT tempdb.dbo.mh_pivot_candidate VALUES (40, 'RED', 'WHITE', 'BLUE', NULL, NULL)
INSERT tempdb.dbo.mh_pivot_candidate VALUES (50, 'MAGENTA', NULL, NULL, NULL, NULL)

SELECT * FROM tempdb.dbo.mh_pivot_candidate
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Question by:MariaHalt
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2 Comments
 
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Accepted Solution

by:
Lowfatspread earned 500 total points
ID: 38851893
you can use sql servers unpivot extension to sql

like this

select mythingid,color
from dbo.mh_pivot_candidate as a
unpivot (color for attribute in (color1,color2,color3,color4,color5) ) as unpvt
order by mythingid,attribute

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your requirement is actually to unpivot your data from columns into rows ,
pivot means putting rows into columns...

there are several very good articles written by ee members on the usage of the sql server pivot/unpivot extensions   under the sql server 2005/2008 topic areas...
0
 

Author Closing Comment

by:MariaHalt
ID: 38851934
Worked perfectly.  Thanks for the explanation too.
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