RE: function based indexes

From: DENNIS WILLIAMS <DWILLIAMS_at_LIFETOUCH.COM>
Date: Mon, 13 May 2002 14:35:27 -0800
Message-ID: <F001.0045FC08.20020513143527@fatcity.com>

Harvinder - I had to make these settings in order to use function-based indexes maybe a year ago in Oracle 8.1.6, and thus far have experienced no ill effects. For specifics of what they do, I would read the Oracle documentation and do a search on http://www.google.com. Try it on your test database first, of course. If you have multiple production databases, you might test it on your least critical production database first. Other than that, if you wish to use a function-based index, then you must set these parameters.
Dennis Williams
DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com

-----Original Message-----

Sent: Monday, May 13, 2002 4:29 PM
To: Multiple recipients of list ORACLE-L

Hi,

We are using function based index and optimizer is using indexes properly. parameter query_rewrite_integrity is set as ENFORCED docs says that we need to change the valus to TRUSTED. I just want to know the comments of DBA's using function based indexes whether this parameter should be changed to TRUSTED and what is use of TRUSTED. Thanks
--Harvinder
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Author: Harvinder Singh
  INET: Harvinder.Singh_at_MetraTech.com

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Author: DENNIS WILLIAMS
  INET: DWILLIAMS_at_LIFETOUCH.COM

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