Thought I would add to my initial post: Would the following query give me correct number of sessions opened by ID 74 over the course of Oct 20th? select count(distinct session_id) from DBA_HIST_ACTIVE_SESS_HISTORY where user_id = 74 and sample_time >= to_date('10-20-2008','mm-dd-yyyy') and sample_time < to_date('10-21-2008','mm-dd-yyyy') thank you Gene Gurevich <genegurevich@dis cover.com> Sent by: To oracle-l-bounce@f oracle-l@xxxxxxxxxxxxx reelists.org cc Subject 10/22/2008 04:41 How to calculate number of sessions PM per ID Please respond to genegurevich@disc over.com Hi everybody: I am running oracle 10.2.0.3 and I need to calculate the number of sessions opened by a specific ID per day. Is DBA_HIST_ACTIVE_SESS_HISTORY view appropriate for that task? If not, what would be a better source? thank you Gene Gurevich Please consider the environment before printing this email. -- //www.freelists.org/webpage/oracle-l Please consider the environment before printing this email. -- //www.freelists.org/webpage/oracle-l