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Re: select distinct values

From: Vladimir Begun <Vladimir.Begun_at_oracle.com>
Date: Tue, 23 Sep 2003 13:14:39 -0800
Message-ID: <F001.005D0DA0.20030923131439@fatcity.com>


SELECT DISTINCT testid

      , FIRST_VALUE(name)   OVER (PARTITION BY testid ORDER BY ROWID) name
      , FIRST_VALUE(status) OVER (PARTITION BY testid ORDER BY ROWID) status
   FROM testing
/
-- 
Vladimir Begun
The statements and opinions expressed here are my own and
do not necessarily represent those of Oracle Corporation.

elain he wrote:

> 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.
-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Vladimir Begun INET: Vladimir.Begun_at_oracle.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Received on Tue Sep 23 2003 - 16:14:39 CDT

Original text of this message

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