RE: Slow ODBC connectivity
- From: "Jesse, Rich" <Rich.Jesse@xxxxxxxxxxxx>
- To: "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 5 Feb 2004 09:32:16 -0600
Hey, good point! When we had some ODBC performance problems a few years
ago, I attempted to turn on ODBC tracing but it was already on. Turned it
off and deleted the 100s of MB of ODBC trace and all was well. :)
Rich
Rich Jesse System/Database Administrator
rich.jesse@xxxxxxxxxxxx Quad/Tech International, Sussex, WI USA
-----Original Message-----
From: DENNIS WILLIAMS [mailto:DWILLIAMS@xxxxxxxxxxxxx]
Sent: Thursday, February 05, 2004 9:12 AM
To: 'oracle-l@xxxxxxxxxxxxx'
Subject: RE: Slow ODBC connectivity
Patrice
Since it sounds like an in-house application, you might have the
developers insert a statement to turn tracing on. Review of the trace might
give you an idea of where the delays occur. From your posting, it sounds
like you are assuming ODBC is the culprit, yet you also mention that you
found one SQL statement that is causing significant delay itself. The
question is whether the delay is due to ODBC or due to the SQL statements.
Sometimes problems occur just due to the amount of network traffic back and
forth between the server and the client. I think this question must be
resolved before you decide on a tuning plan. A detailed trace should reveal
the answer to this question. As Cary Millsap says in his book, this may be a
situation where the SQL wait times are significant and can't be treated as
inconsequential. Good luck, these types of situations can require a lot of
time and patience to unravel.
Dennis Williams
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