Let’s have look on the steps used to solve the error Error(ORA-00031: session marked for the kill) Let’s have look on the steps Phase – 1 Find out thread id that needed to be killed from OS level select vs.sid, vs.username, vs.osuser, vs.process fg_pid, vp.spid bg_pid from v$session vs, v$process vp where vs.paddr = vp.addr; If you know the user detail you can filter […]