Database Tuning (MOSC)

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Gather Stats

edited Feb 27, 2009 2:59AM in Database Tuning (MOSC) 1 commentAnswered
Hi

I need some information as to how gather stats works and what is the optimum way to gather stats.

Currently we have to run gather stats on a daily basis on GL_CODE_COMBINATIONS for Oracle Apps and the index on this table. If we do not run gather stats even for a single day, it makes pulling balances from GL_BALANCES so slow.

So why it makes such a difference. Why can't oracle use the stats from the prior run and still optimize the queries to run faster.

SM 

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