Wrong :) Event 10053 would do much better in this case. Igor -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of J.Velikanovs@xxxxxxxx Sent: Friday, August 06, 2004 12:58 PM To: oracle-l@xxxxxxxxxxxxx Subject: RE: RE: Time to read 6000 (block size 2k) blocks Thank you father! . The lesson you have given me is invaluable. Lets me guess for the next step. I imagine that we can try use our magic artifact, which we have received from Mag with beautiful name Oracle8i. . I gona use magic of DBMS_STATS. Please allow me to try?! . Jurijs +371 9268222 (+2 GMT) ============================================ Thank you for teaching me. http://otn.oracle.com/ocm/jvelikanovs.html "Cary Millsap" <cary.millsap@xxxxxxxxxx> Sent by: oracle-l-bounce@xxxxxxxxxxxxx 06.08.2004 20:21 Please respond to oracle-l To: <oracle-l@xxxxxxxxxxxxx> cc: Subject: RE: RE: Time to read 6000 (block size 2k) blocks Excellent to watch this, buys. Now, if I might suggest: Please take the next step as well, which is to figure out how to make the CBO execute the correct plan WITHOUT leaving = the hints in. Doing this step now will save you some potentially difficult maintenance tasks later on. Cary Millsap Hotsos Enterprises, Ltd. http://www.hotsos.com * Nullius in verba * Upcoming events: - Performance Diagnosis 101: 8/10 Boston, 9/14 San Francisco, 10/5 = Charlotte - SQL Optimization 101: 7/26 Washington DC, 8/16 Minneapolis, 9/20 = Hartford - Hotsos Symposium 2005: March 6-10 Dallas - Visit www.hotsos.com for schedule details... -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx = [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of jaysingh1@xxxxxxxxxxxxx Sent: Friday, August 06, 2004 12:10 PM To: oracle-l@xxxxxxxxxxxxx Subject: Re: RE: Time to read 6000 (block size 2k) blocks Jurijs You are correct. It worked. Now it is doing 9 LIOs instead of 18,800 = LIOs. Thanks you so much. ----- Original Message ----- From: J.Velikanovs@xxxxxxxx Date: Friday, August 6, 2004 11:12 am Subject: Re: RE: Time to read 6000 (block size 2k) blocks > Rows Row Source Operation > ------- --------------------------------------------------- > 1 SORT UNIQUE=20 > 1 COUNT STOPKEY=20 > 1 NESTED LOOPS=20 > 4766 TABLE ACCESS BY INDEX ROWID PROFILEDUSER (it has=20 > 450,000 rows) > 4767 INDEX RANGE SCAN (PROFILEDUSER_IX03) > 1 TABLE ACCESS BY INDEX ROWID EXTENDEDATTRIBUTES (it has=20 > 15,000=20 > rows) > 9530 INDEX UNIQUE SCAN (ATTRIBUTES_PK) >=20 > The idea is: to start NL with EXTENDEDATTRIBUTES table. Bacause in=20 > SQL you=20 > have E.CUSTOMERID =3D 'ABCDEFGH', and this seems ID value, which=20 > will return=20 > 1 row, instead 4766 loops thought PROFILEDUSER. >=20 > Try to get EXTENDEDATTRIBUTES as driven table. Or I am wrong ? >=20 >=20 > Jurijs > +371 9268222 (+2 GMT) ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------