Hallo Raj, You a lucky one. What I am seeing is a perfectly blank white page. CBO is no more Black hole for me ;) Milen -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of rjamya Sent: Sunday, June 12, 2005 9:10 PM To: Oracle Discussion List Subject: New metalink note on CBO internals Oracle it seemd have released a new note<http://metalink.oracle.com/metalink/plsql/ml2_documents.showFrameDocument?p_database_id=NOT&p_id=309475.1>on Database Tuning including CBO. I already solved couple of issues using the amazing information, save a local copy for your use. 8:) Raj ------------------------------ select standard_disclaimer from company_requirements where category = 'MANDATORY'; -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l