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Re: Performance Problem with View

From: Jim Kennedy <kennedy-downwithspammersfamily_at_attbi.com>
Date: Sat, 01 Feb 2003 20:31:51 GMT
Message-ID: <X8W_9.121628$6G4.14153@sccrnsc02>


What version? What is the explain plan and the tkprof output? What is the view? What indexes exist? Have the tables and indexes been analyzed? Jim
"Nicolas Bronke" <bronke_at_gmx.de> wrote in message news:b1hae3$12og98$1_at_ID-121870.news.dfncis.de...
> Following:
> I have a view on shema one. This view takes 2 second for 15000 records for
a
> select count(*)
>
> From another user I created a view on this including two joins for two
> colums (Both table have around 90 records) and I am for sure that I made
the
> join correctly.
> But now the select count(*) on this table needs around 200 seconds.
> Okay this should not be a big problem, if the a stored procedure needs my
> view a couple of time so that I wait around half an hour.
>
> Because I did not found the problem, I started a workaround. I created a
> simple table into which I inserted the records from the foreign shema. Now
I
> created my view on this new table. And now everything worked fine. The
> copying of the number of records are not the problem.
>
> But I believe this can only a workaround, because I know that the number
of
> rows will increase!
>
> I believe the bottleneck is the switch from the view from the foreign
schema
> to the view in my schema.
>
> Has someone an idea?
>
> Thank you in advance.
>
> Nicolas
>
Received on Sat Feb 01 2003 - 14:31:51 CST

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