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> > Very clever! Someone is using his brain.
>
> You took the words out of my mouth. Clever and elegant indeed. Just what
> I was looking for, using pure SQL, not PL/SQL.
Thanks for the acclaim ;-) , but it was not my brain. I've seen it at Tom Kyte's site asktom.oracle.com
Regards
Ralf Received on Thu Nov 03 2005 - 01:24:02 CST