Which platform, which features and options do you have?
I would recommend using Diag Pack and AWR reports, but if you don't have
EE and OEM and DiagPack, it would be a wast of time recommending them.
/Hans
On 19/10/2015 1:21 PM, Mandal, Ashoke wrote:
Greetings All,
After the upgrade of one of my databases from Oracle 10.2.0.4 to Oracle 11.2.0.3 the users are experiencing poor query performance. The response time of the queries have increased by 15 times.
I have tried the following without any luck but checking if you have any other suggestions
1.Changed optimizer_dynamic_sampling from 2 to 1 => No performance improvement
2.Changed optimizer_features_enable to '10.2.0.4' => No performance improvement
3.Try setting cursor_sharing to force => No performance improvement
4.Set “_optimizer_skip_scan_enabled" = FALSE => No performance improvement
Please let me know if you any suggestions to resolve this issue
Appreciate your help in advance,
Ashoke
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