Thank you - Dennis Williams, Juan, Robert Eskridge, Keith Moore, Niall = Litchfield. Your replies helped me. I thank you all for taking time to clarify. Regards, Rao ---------------------------------------------------------------- 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 -----------------------------------------------------------------