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Performance - EBS (MOSC)

execution plan difference observed after upgrade

Jun 4, 2021 4:25PM in Performance - EBS (MOSC) 3 commentsAnswered

Hi,

We have upgraded our instance from; application: R12.1.1 to R12.2.10 and database: 11g to 19c.

After the same, we are experiencing a query execution plan difference of the same query in pre-upgrade and post-upgrade instances.

Please note that all indexes are working as worked on in the previous instance.

Need support to understand and resolve the issue.

Regards,

Unaib Musani

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