Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Usenet -> c.d.o.misc -> Re: performance issue

Re: performance issue

From: replace this with _at_ <_at_)xs4all.nl>
Date: Fri, 23 Oct 1998 20:43:51 GMT
Message-ID: <362f8c84.9872415@news.xs4all.nl>


Hi,

>1. We have tables for each month and we are creating a view for the full
>year by
>using UNION ALL.While selecting the distinct values from the views its
>taking
>too much time.Its doing a range scan.is there any way that we can tune the
>performance while running the queries against views.

Why using distinct values when the tables are divided in months? There shouldn't be any duplicate rows.


Received on Fri Oct 23 1998 - 15:43:51 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US