oracle查找锁定表信息

?

--查找锁定表信息
select p.spid,
?????? 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 = a.paddr
?? and a.process = b.process
?? and c.object_id = b.object_id;