Oracle lock table query statement

select a.object_name,b.session_id,c.serial#,'alter system kill session '''||b.session_id||','||c.serial#||'''; ' as a,c.program,c.username,c.command,c.machine,c.lockwait
from all_objects a,v$locked_object b,v$session c where a.object_id=b.object_id and c.sid=b.session_id;