Performance - EBS (MOSC)

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EBiz 12.1.2 performance degrade after patched from 11.2.0.1 to 11.2.0.3

edited Sep 4, 2012 10:49AM in Performance - EBS (MOSC) 6 commentsAnswered

Customer encountered a general performance degrade after patched from 11.2.0.1 to 11.2.0.3 in their 12.1.2 environment. Many of their customizations were impacted. One standard sql, GL Posting program, is also found degraded with similar issue. Before patching, index scan is used. After patching, full table scan is used. Workload statistics was tested and this is working. But according to the note 368252.1, we do not recommend EBiz using workload statistics.
Does anyone face similar performance issue and what is the recommendation? We hope there can be a solution applying some fix / workaround so that after patching to 11.2.0.3, the existing plans in 11.2.0.1 can continue being used and minimize the changes required. Thanks so much in advance.

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