RE: select distinct values

From: elain he <elainhe_at_hotmail.com>
Date: Tue, 23 Sep 2003 13:59:51 -0800
Message-ID: <F001.005D0DAF.20030923135951@fatcity.com>

Alan,
Thanks! that works.

elain

>From: Alan Gano <Alan.Gano_at_banfield.net>
>Reply-To: ORACLE-L_at_fatcity.com
>To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
>Subject: RE: select distinct values
>Date: Tue, 23 Sep 2003 13:04:47 -0800
>
>
>Try this (in 8i or above):
>
>select * from (
> select
> testid,
> name,
> status,
> rank() over(
> partition by testid
> order by rownum
> ) dup_rank
> from testing
>)
>where dup_rank = 1
>
>
>
>-----Original Message-----
>Sent: Tuesday, September 23, 2003 1:40 PM
>To: Multiple recipients of list ORACLE-L
>
>
>Hi,
>Could someone shed some light on this.
>
>I'm trying to formulate a query to return distinct value on a column -
>testid.
>
>select * from testing;
>TESTID NAME STATUS
>---------- -------------------- -----------
> 1 MIKE Y
> 1 JOE Y
> 1 JIM Y
> 2 AMY Y
>
>The output I'm expecting is
>TESTID NAME STATUS
>---------- -------------------- -----------
> 1 MIKE Y
> 2 AMY Y
>
>
>The query should display the first occurence of the testid and ignore
>records with the same testid.
>
>thanks!
>
>elain
>
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>Author: elain he
> INET: elainhe_at_hotmail.com
>
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>Author: Alan Gano
> INET: Alan.Gano_at_Banfield.net
>
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-- 
Author: elain he
  INET: elainhe_at_hotmail.com

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Received on Tue Sep 23 2003 - 16:59:51 CDT