查询ORACLE加锁的进程和用户

select /*a.*,*/-- b.SID      waiting_SID, b.MACHINE waiting_MACHINE, -- b.TERMINAL waiting_TERMINAL, b.PROGRAM waiting_PROGRAM, b.OSUSER  waiting_OSUSER, -- c.SID      holding_SID, c.MACHINE holding_MACHINE, -- c.TERMINAL holding_TERMINAL, c.PROGRAM     holding_PROGRAM, c.OSUSER      holding_OSUSER, e.OBJECT_NAME  from dba_waiters     a,       v$session       b,       v$session       c,       v$locked_object d,       dba_objects     e where a.waiting_session = b.SID(+)   and a.holding_session = c.SID(+)   and a.holding_session = d.SESSION_ID(+)   and e.OBJECT_ID(+) = d.OBJECT_ID;