> I don’t see any appropriate method how to compare tow SQL execution plans. > Any ieas? Cool tests you've done here. Well, what users care about is response time and response time can't be measured in LIOs anyway. Luckily we have CPU_TIME and ELAPSED_TIME columns in V$SQL starting from 9i, and these we can measure in seconds. Tanel. ---------------------------------------------------------------- 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 -----------------------------------------------------------------