title: Oracle Database, What is an easy way to find all active db sessions (for all users) log in time (since when) using sql or em?
body: <p>Oracle DBAs,  What is an easy way to find all active db sessions (for all users) log in time (since when)? I checked the sys view v$session and v$active_session_history, could not get that infor I want. I also checked on em client and em, seems no pages are showing it.</p>