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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 http://www.jlcomp.demon.co.uk Host to The Co-Operative Oracle Users' FAQ http://www.jlcomp.demon.co.uk/faq/ind_faq.html Author of: Practical Oracle 8i: Building Efficient Databases Screen saver or Life saver: http://www.ud.com Use spare CPU to assist in cancer research. Connor McDonald wrote in message <3B9908EC.D8F_at_yahoo.com>...Received on Fri Sep 07 2001 - 14:14:56 CDT
>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
>>