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" <[EMAIL PROTECTED]> 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: > http://www.orafaq.net > -- > Author: Deshpande, Kirti > INET: [EMAIL PROTECTED] > > 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: [EMAIL PROTECTED] (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). > __________________________________________________ Do you Yahoo!? Yahoo! Web Hosting - establish your business online http://webhosting.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: mkb INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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).