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Query for only duplicates to be selected

 
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kespra
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Joined: 03 Jun 2008
Posts: 24
Location: bangalore

PostPosted: Tue Sep 02, 2008 7:03 pm    Post subject: Query for only duplicates to be selected
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In a column I want only duplicates to be selected what should I do?Take col has values 1
1
2
2
3
3
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6258
Location: Mumbai, India

PostPosted: Tue Sep 02, 2008 7:13 pm    Post subject:
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Hi,

Please check this link-

http://www.ibmmainframes.com/viewtopic.php?t=33858&highlight=duplicate
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guptae

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Joined: 14 Oct 2005
Posts: 1191
Location: Bangalore,India

PostPosted: Tue Sep 02, 2008 7:15 pm    Post subject:
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Hello,

You can use following query

select colum1 from table1
group by colum1
having count(*) >1

will give you result as
2
3

Hope i understand ur question correctly
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