SQL Command Intersect
From: Heinz G. Perren <heinz.perren_at_reconline.ch>
Date: Tue, 9 Mar 1999 10:53:43 +0100
Message-ID: <7c2ra9$aiu$1_at_online-15-atm.cablecom.ch>
Hi
Date: Tue, 9 Mar 1999 10:53:43 +0100
Message-ID: <7c2ra9$aiu$1_at_online-15-atm.cablecom.ch>
Hi
Do someone knows how the command intersect works on an oracle 8 database internally? Do oracle makes each select query and merges them together or do oracle take the result of the first select and use it as a filter for the second one.
Heinz Received on Tue Mar 09 1999 - 10:53:43 CET