Database Install/Upgrade/Opatch (MOSC)

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Oracle Database Upgrade from 11g to 12c

edited Sep 23, 2019 11:53AM in Database Install/Upgrade/Opatch (MOSC) 4 commentsAnswered ✓

I have to upgrade Oracle database 11g to 12c RAC instance on windows. OS will also be completely removed and reinstalled with newer version.

Therefore I found logical backup & restore (impdp / expdp) most suitable in my case.

Before this actual upgrade, I would like to TEST the performance and load captured from 11g and applied onto 12c test environment to understand any possibility of slow performance or service degradation in advance. I also want to know how I can avoid SQL execution plan to change after upgrade. Any other recommendation or areas to be more careful about or need special intension is highly appreciated.

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