table lock problem?

From: Guy Hammond <guy.hammond_at_avt.co.uk>
Date: Thu, 09 Aug 2001 10:00:43 -0700
Message-ID: <F001.00365804.20010809084437@fatcity.com>

Hi all,

I had a developer come to me yesterday and tell me his session had hung, and sure enough it had, he was executing an INSERT into a table with 5 columns. Oracle was just sitting there, but all the other sessions logged into the database were fine. I got the SQL out of the SQL Area and ran it in one of my own SQL*Plus windows, and sure enough it got stuck for me too. The statement was part of a transaction that inserted and updated about 8 tables, and this happens on the 3000th or so transaction in that session. We killed that session and restarted the application, and it was fine until it happened again.

How would I go about diagnosing something like this? A couple of the columns were from sequences, and I verified that these were OK. The others were just text inserted into VARCHAR2s.

Thanks,

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Guy Hammond
AVT Technologies
12-16 Westland Place
London N1 7LP UK

Email: guy.hammond_at_avt.co.uk
Office: +44 (0) 207 454 1224
Mobile: +44 (0) 7966 164687

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Author: Guy Hammond
INET: guy.hammond_at_avt.co.uk

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