How to kill a session when an Oracle update table is locked

How to kill session 1 when an Oracle table update is locked. view the locked table SELECT p. spid,. serial #, c. object_name, B. session_id, B. oracle_username, B. OS _user_name FROM v $ process p, v $ session a, v $ locked_object B, all_objects c WHERE p. addr =. paddr AND. process = B. process AND c. object_id = B. object_id; 2. view the SELECT sid, serial #, username, osuser FROM v $ session where osuser = 'admin' --- OS _USER_NAME AND username = 'kaifa '; ---> ORACLE_USERNAME 3 of the Process lock. kill the process al alter system kill session '123'; ---> the two values in the process are sid and serial #