NVL in version 6 & Version 7
From: Scott Phillips <sphillips_at_mediaone.net>
Date: 1998/01/20
Message-ID: <34C53353.F8F02AFE_at_mediaone.net>#1/1
Date: 1998/01/20
Message-ID: <34C53353.F8F02AFE_at_mediaone.net>#1/1
Is anybody aware of any difference in the
way NVL is handled in version 6 vs. Version
7? I have an app that the queries were
written for Version 6 and the programmer said
they used the NVL on the left hand side of
the equal statement to disable the use of the
index, thereby being able to control which
indexes were being used on the fields. When
we went to Version 7 the system started
slowing down and I think it is because the
rules base optimizer is seeing the NVL and
disabling the use of the indexes.
Scott Received on Tue Jan 20 1998 - 00:00:00 CET