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Re: ccol$

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Fri, 7 Sep 2001 20:14:56 +0100
Message-ID: <999890098.12239.0.nnrp-08.9e984b29@news.demon.co.uk>

And here's a thought from Tom Kyte about why you might have so many of them that the dictionary cache cannot keep them all, and has to keep re-reading them.

If you keep refreshing data by truncating and importing, then some classes of constraints that you have defined will be re-created each time you do the import. Do a quick check on a few tables to see if they have large numbers of the same 'check' constraint.

--
Jonathan Lewis
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Connor McDonald wrote in message <3B9908EC.D8F_at_yahoo.com>...

>d.a. wrote:
>>
>> Anyone know what would cause this sql to be executed in a database over 2
>> million times per day?
>>
>> select intcol#,nvl(pos#,0),col# from ccol$ where con#=:1
>>
Received on Fri Sep 07 2001 - 14:14:56 CDT

Original text of this message

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