Help on tkprof output

From: <jaysingh1_at_optonline.net>
Date: Tue, 02 Dec 2003 15:19:26 -0800
Message-ID: <F001.005D8716.20031202151926@fatcity.com>

Hi Gurus,

Could someone shed some light on the following tkprof output.

To get 0 record it is aking more than 11 seconds. Also I see huge difference between CPU time and elapsed time even though the system is not so busy(It is a test machine. very low load on it). If you say it is waiting on something, could you tell me how to identify the wait event associated with this and how to rectify the same?

Also please let me know why the query count is very high?

select countryname, e.lastupdatedate

from e e, p p, c c
where p.pid = e.pid

    and p.hsbc_user_category='GIB'
    and p.business_country_id=c.countryabbrev
    and e.userstatusid in ( select userstatusid from userstatus )
    and p.business_country_id in ( select countryabbrev from c )

order by countryname, e.lastupdatedate desc

call count cpu elapsed disk query current rows

------ -------- ---------- ---------- ---------- ---------- ---------- Parse 2 0.07 0.08 0 0 0 0 Execute 2 0.00 0.02 0 0 0 0 Fetch 2 42.95 133.21 58730 118694 24 0
------ -------- ---------- ---------- ---------- ---------- ---------- total 6 43.02 133.31 58730 118694 24 0

Misses in library cache during parse: 1 Optimizer goal: CHOOSE
Parsing user id: 165

Rows Row Source Operation

--------------------------------------------------- 0 SORT ORDER BY 0 NESTED LOOPS 1 NESTED LOOPS 1590 HASH JOIN 239 TABLE ACCESS FULL c 1589 HASH JOIN 239 VIEW VW_NSO_1 239 SORT UNIQUE 239 INDEX FAST FULL SCAN (object id 76648) 1589 TABLE ACCESS FULL p 1589 TABLE ACCESS BY INDEX ROWID e 1589 INDEX UNIQUE SCAN (object id 76709) 0 INDEX UNIQUE SCAN (object id 76899)

OVERALL TOTALS FOR ALL NON-RECURSIVE STATEMENTS call count cpu elapsed disk query current rows

------ -------- ---------- ---------- ---------- ---------- ---------- Parse 4 0.07 0.08 0 0 0 0 Execute 5 0.00 0.05 0 0 0 2 Fetch 2 42.95 133.21 58730 118694 24 0
------ -------- ---------- ---------- ---------- ---------- ---------- total 11 43.02 133.34 58730 118694 24 2

Misses in library cache during parse: 1

Thanks
Jay

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Received on Tue Dec 02 2003 - 17:19:26 CST