Database Tuning (MOSC)

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SQL queries taking long time after 11g upgrade.

edited Sep 17, 2010 2:49AM in Database Tuning (MOSC) 8 commentsAnswered
Hi
I have upgraded oracle database from 9i to 11g using export and import utility.
After migration we are facing performance issue in report generation, We have observed that First execution of report is taking very long time and when we generate the same report 2 -3 times there is considerable change in the exection time and it is more better than the first execution.

2 days back I have restarted the database and found the same issue. There are around 300 Reports and it is not possible to generate all the reports 2-3 times everytime we restart the database.

Can anyone suggest some solution on this.

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