Re: Deciding what columns to partition on

Jared Still wrote:
>
> On Tuesday 18 December 2001 12:55, Stephane Faroult wrote:
> > I have never found the argument 'you
> > scan a single partition' very compelling when your data is properly
> > indexed.
>
> Stephane,
>
> This is assuming that you are using global indexes on your
> partitioned tables. If using local indexes and searching by
> something other than the partition key, all indexes will
> be scanned if used at all.

Excellent point. Which rather goes AGAINST partitioning-as-a-performance-improvement-factor. In fact, I have never managed to do without global indexes. Users always seem to want to ask the wrong questions. When I wear my DBA cap I really like partitions. Otherwise I rather like them as an alternative to bitmap indexes (so to speak).

-- 
Regards,

Stephane Faroult
Oriole Ltd
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Stephane Faroult
  INET: sfaroult_at_oriole.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (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).