In 9i+ you can run a 10046 level 12 trace and then run tkprof on it to get a summary of the WAIT events for each query. Prior to 9i, the WAIT events will be in the raw trace file, but not summarized for you by tkprof so you'd have to use some other utility to summarize them. Regards, Brandon Allen Privileged/Confidential Information may be contained in this message or attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of this company shall be understood as neither given nor endorsed by it. -- //www.freelists.org/webpage/oracle-l