sql_hash_value's for a session

[CHALAVADI]

I am trying to capture all the sql_hash_value's for a session which will be running for 5 minutes executing different sql statements. can someone please let me know if we can do this. Thanks in advance.

[tomcat]

look at v$open_cursor, or better yet - set sql trace for the session. Then you could see how long each took and what they did, including bind values.

[CHALAVADI]

Tom, thanks for your response. How long will the entries in v$open_cursor stay (for a session) after that session disconnects?

[tomcat]

They won't - they're only there as long as the session is connected. I do believe the "open" part is relative though - I think they don't drop out of the view even if the app closes the cursors.

If what you're wanting is to tune a process, you can't beat doing a level 12 sql trace, you'll get all the wait times and bind variables. You can look at the trace directly, or run tkprof to get a summary and find the expensive sqls.

For a complete analysis of traces, see Cary Millsap's book Optimizing Oracle Performance - it totally changed my approach to tuning.

Let me know if you need more info on tracing