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Duplicate rows in Datatable

Posted on 2008-06-21
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Last Modified: 2008-06-23
I hava a datatable with 10 rows.  I need to duplicate those rows. How is best to do this?
(Then I will add another column to identify each row. ).
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Question by:johnkainn
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3 Comments
 
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Expert Comment

by:Deepika_Rastogi
ID: 21837252
U want to do that through code or your database query
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by:johnkainn
ID: 21837351
I need actually to duplicate 5 times. I need also to create a new column so that each duplicate has its own number in that column, ranging from 1 to 5.
Originally I planned to do this in code, but maybe it is better to do this in SPROC. What do you think?
 Can you help me with that or should I post the question again for the sql group in this forum?
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Accepted Solution

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CMYScott earned 125 total points
ID: 21839365
the SPROC would be like this...  (you'll need to add the CREATE PROCEDURE heading etc)

select * into #temp from yourtable
alter table yourtable add idx int
go
update yourtable set idx = 1
insert into yourtable select #temp.*,2 from #temp
insert into yourtable select #temp.*,3 from #temp
insert into yourtable select #temp.*,4 from #temp
insert into yourtable select #temp.*,5 from #temp
drop table #temp
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