Re: Options for poorly performing SQL
- From: Paul Drake <bdbafh@xxxxxxxxx>
- To: sbecker6925@xxxxxxxxx
- Date: Tue, 5 Feb 2013 10:18:29 -0500
Sandra,
Consultant Ned had an idea.
https://www.youtube.com/watch?v=CZmHDEa0Y20 (SFW).
Does mgmt have any idea as to how powerful the catapult required would be
to provide acceptable response times with the less than ideal code?
Paul
On Mon, Feb 4, 2013 at 10:15 AM, Sandra Becker <sbecker6925@xxxxxxxxx>wrote:
> Oracle - EE 11.2.0.2
> OS - SUSE11
> I have a particularly egregious SQL statement that causes problems in my
> production OLTP. It's bad enough when only one session is running it, but
> at times there may be 5 to 10 sessions running it. Then I end up on a
> conference call explaining the problem is the application and unless they
> want me to kill customer sessions, I can't address the performance issues.
>
> I have been trying for 5 years to get the development team to address it.
> I have provided a properly coded statement that retrieves the identical
> results yet performs about 95 percent faster with significantly less I/0,
> along with trace data and explain plans of both the current statement and
> the optimized statement. They refuse to even look at the statement because
> it is dynamically created in the application using javaScript. Not knowing
> javaScript, I'm not sure why it makes a difference. Perhaps other
> dynamically created statements would benefit from changes here as well.
>
> Questions: Do I have any other options to corral this statement? I
> haven't used profiles and will be reading up on them this week, but would a
> profile even be a appropriate for this situation?
>
> --
> Sandy
> Transzap, Inc.
>
>
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> //www.freelists.org/webpage/oracle-l
>
>
>
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