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shaggy
Posting Yak Master

India
228 Posts
Posted - 07/20/2012 :  09:00:20  Show Profile  Reply with Quote
This is a sample table. I want to transform data from rows to column
Can anybody help me in this
create table #t1(col2 varchar(100))

insert #t1 select 'A'
insert #t1 select 'B'
insert #t1 select 'C'

I want resultset to be

COL1 Col2 COL3
A B C

shaggy
Posting Yak Master

India
228 Posts
Posted - 07/20/2012 :  09:14:07  Show Profile  Reply with Quote
I tried this its working.
create table #t1(col1 int identity ,col2 as 'a'+convert(varchar,col1) )
insert #t1 default values
select MAX(case when col1 = 1 then col2 end),MAX(case when col1 = 3 then col2 end),MAX(case when col1 = 3 then col2 end) from #t1

I want to know, is there any other methods
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sunitabeck
Flowing Fount of Yak Knowledge

5152 Posts
Posted - 07/20/2012 :  09:20:08  Show Profile  Reply with Quote
On SQL 2005 or later, you can use PIVOT operator like this:
SELECT
	*
FROM
	#t1
PIVOT
( MAX(col2) FOR col1 IN ([1],[2],[3]))P
That obviously is not scalable. WHen there are unknown number of columns to pivot, people use DYNAMIC PIVOT - see Madhivanan's blog here: http://beyondrelational.com/modules/2/blogs/70/posts/10840/dynamic-pivot-in-sql-server-2005.aspx
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shaggy
Posting Yak Master

India
228 Posts
Posted - 07/20/2012 :  09:39:47  Show Profile  Reply with Quote
Thanks sunitabeck
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