SQL to retrieve all distinct records

From: Alison Barak <ambarak_at_hotmail.com>
Date: Thu, 15 Apr 2004 09:38:28 -0400
Message-ID: <LAW10-F106X97shWDe500042db2@hotmail.com>

Hi,
can someone assist me with formulating a query to retrieve all distinct records. I need to retrieve all three columns a,b &c based on the distinct of the two columns a & b.

SQL> select * from testing;
A B C
---------- ---------- ----------

APPS       APPS       R1
SYS        SYS2       R2
SYS        SYS2       R3
DOC        DOC2       R4
DC         DC2        R5
DOC        DOC        R6

The result should be
A          B          C


---------- ---------- ----------

APPS       APPS       R1
SYS        SYS2       R2
DOC        DOC2       R4
DC         DC2        R5
DOC        DOC        R6

I tried using group by/having count but was not successful. Any idea?

Thanks.

alison

---

MSN Toolbar provides one-click access to Hotmail from any Web page – FREE download! http://toolbar.msn.com/go/onm00200413ave/direct/01/

---

Please see the official ORACLE-L FAQ: http://www.orafaq.com

---

To unsubscribe send email to: oracle-l-request_at_freelists.org put 'unsubscribe' in the subject line.
--

Archives are at http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html

---

Received on Thu Apr 15 2004 - 08:36:15 CDT