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Re: materlized views from complex queries and refresh

From: cptkirkh <khill_at_scic.com>
Date: 15 Jan 2007 09:36:49 -0800
Message-ID: <1168882608.425580.177780@51g2000cwl.googlegroups.com>

sybrandb wrote:
> DA,
> I replied to the last response to my question. I also asked the
> quetion because I was hoping to find out what others might do in this
> same situation. Let me rephrase my question since you seem to be to
> dense to understand my question. I have a very compex SQL query that
> involves decodes and functions run on various tables to form a table
> that makes it easier to report off of for our report designers. it
> also uses outer joins to join two tables. I am not the one who
> designed the SQL query that creates the current view just the one who
> has to fix it. 10.1.0.3 would be the correct version. What I am
> trying to achieve is a materialzed view that would refresh on commit.
> It seems since i use such a compex query fast refresh is out of the
> question. Full refresh is where I am confused. What if this query
> takes 90 minutes to run? DOes this mena the MV would take 90 minutes
> to refresh?
> designers. it
> > also uses outer joins to join two tables. I am not the one who
> > designed the SQL query that creates the current view just the one who
> > has to fix it. 10.1.0.3 would be the correct version. What I am
> > trying to achieve is a materialzed view that would refresh on commit.
> > It seems since i use such a compex query fast refresh is out of the
> > question. Full refresh is where I am confused. What if this query
> > takes 90 minutes to run? DOes this mena the MV would take 90 minutes
> > to refresh?
> >
> >
> >
>
> MVs do not refresh on SELECT. I don't think there is any correlation
> between the time to query and the time to refresh. But likely the time
> to refresh would be longer, not shorter.
> Finally: could you look up 'top-posting' somewhere and stop behaving
> rude?
>
> --
> Sybrand Bakker
> Senior Oracle DBA

Ok ?I see what you are tlaking baout sorry it is my bad I didn't realize that people preferred I type at the bottom of the posting. Received on Mon Jan 15 2007 - 11:36:49 CST

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