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тАО08-31-2005 05:53 PM
тАО08-31-2005 05:53 PM
I have an Oracle 9i running over hp-ux 11i .Many applications use this database and I am quite sure that any of them is making a really bad query which blocks my system . I must know what kind of queries this application makes . Is is possible to the db in auditory mode or something like that ?? How can I get a log file which tell me which transation has been executed in each moment??
Thanks
Solved! Go to Solution.
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тАО08-31-2005 06:32 PM
тАО08-31-2005 06:32 PM
Re: Oracle Database auditory
http://www.google.com/search?ie=UTF-8&oe=UTF-8&q=oracle+trace+session
Or, the better option, if your company have some money, it's a good idea to buy monitoring tool. There are some great tools available like Precise (originaly from Israel, then Veritas, now Symantec), very very very good and also very expensive (can reach 80K) and there are some other less expensive, but also less featured by Quest (the father of Toad).
Alex.
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тАО08-31-2005 07:16 PM
тАО08-31-2005 07:16 PM
Re: Oracle Database auditory
Look into the Statspack tool provided with Oracle.
If you take 15 minutes snap at the "peak" period, you should be getting a quite informative report on your database performance and what major problem areas exists on your system.
hope this helps!
kind regards
yogeeraj
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тАО08-31-2005 10:12 PM
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тАО09-02-2005 01:47 AM
тАО09-02-2005 01:47 AM
Re: Oracle Database auditory
You can take a look at v$sql. Zero in on buffer_gets and elapsed_time to find candidates for excesive LIO.
PIO is bad, but LIO is not that good. So if you find too much LIO for a particular query that could indicate the query is executing an inefficient plan, and usually a suitable index would solve this.
HTH,
ARC