Database Tuning (MOSC)

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Request for help with oracle statistics

edited Feb 28, 2012 1:43AM in Database Tuning (MOSC) 8 comments
Hi,

I am about to migrate 8.0.6.0(32 bit) database to 10.2.0.4(64 bit) on windows 2008 standard R2 SP1. I would like to ask few questions regarding Statistics collection.

1) For the first time after upgrade, do i need to collect statistics for whole database including sys,system users.

2) I have few tables which are very huge and often updated. Do i need to collect statistics only for these highly updated/modified tables?

3) How often do i need to collect statistics.

4) Any precautions to be taken during statistics collection job.

5) Need a script to run statistics. Is it recommended to use Oracle Enterprise to run the statistics job?

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