automatic refresh of delta data for materialized views

From: Ferenc Mantfeld <fmantfeld_at_siebel.com>
Date: Tue, 04 Jun 2002 17:13:22 -0800
Message-ID: <F001.00474765.20020604171322@fatcity.com>

Hi All

I have a very large data set for a DW and I created a materialized view on it to give me a quick access to group by and summarization results, I want some way to be able to update the MV with just the delta after I perform an incremental load to the base fact or dimension tables on which the MV is built. From what I have played with so far, I don't see a ready solution. Fast refreshes don't work when MV is on complex view. We are talking about dimension tables with possibly close to a billion rows, and fact tables of similar proportions, so the time taken to refresh the MV becomes a factor.

Any useful suggestions, write-up's, white papers in this regard would be extremely helpful and welcome. Ta muchly in advance !

Regards:
Ferenc Mantfeld
Senior Performance Engineer
Siebel Performance Engineering
Melbourne, 3000, VIC, Australia

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Author: Ferenc Mantfeld
  INET: fmantfeld_at_siebel.com

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