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Performance degrade after 10.2.0.5 patch upgarde and downgrade

edited Apr 19, 2013 5:21AM in Database Administration (MOSC) 2 commentsAnswered
We had a issue with the data insertion in prod server because of which the Oracle support team had suggested to apply the 10.2.0.5 patch after checking the logs. We tested the patch on uat server and found that the eod and other processess were performing poorly so we decided to downgrade. After downgrade we still face the performance issue. The process that took around 2 hours now takes more than 14 hours. We had also changed the optimizer parameter but did not help. Can any body please help.

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