Re: A SQL Question

From: mkb <mkb125_at_yahoo.com>
Date: Thu, 13 Mar 2003 06:19:49 -0800
Message-ID: <F001.00568DC2.20030313061949@fatcity.com>

Assuming dups can be deleted, here's my humble attempt:

select col1, col2
from t
order by col1, col2;

Col1 Col2
- -
A B
B A
C D
E F
G H
H G

6 rows selected.

select col1, col2
from t
union
select col2, col1
from t
;

Col1 Col2
- -
A B
B A
C D
D C
E F
F E
G H
H G

8 rows selected.

mohammed

• "Deshpande, Kirti" <kirti.deshpande_at_verizon.com> wrote:
  > Hi SQL Developers,
  >
  > I have a table as follows:
  >
  > Col1 Col2
  > ----------------
  > A B
  > C D
  > E F
  > G H
  > B A
  > E F
  > C D
  > H G
  >
  > With a PK on (Col1, Col2).
  >
  > How do I write a SQL script to get following result?
  >
  >
  > Col1 Col2
  > --------------------
  > A B
  > B A
  > C D
  > D C
  > E F
  > F E
  > G H
  > H G
  >
  > Thanks for your help.
  >
  > - Kirti
  >
  > --
  > Please see the official ORACLE-L FAQ:
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  > --
  > Author: Deshpande, Kirti
  > INET: kirti.deshpande_at_verizon.com
  >
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-- 
Author: mkb
  INET: mkb125_at_yahoo.com

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Received on Thu Mar 13 2003 - 08:19:49 CST