Oracle数据库死锁查询话语

Oracle数据库死锁查询语句
select t2.username,  
       t2.sid,  
       t2.serial#,  
       t3.object_name,  
       t2.OSUSER,  
       t2.MACHINE,  
       t2.PROGRAM,  
       t2.LOGON_TIME,  
       t2.COMMAND,  
       t2.LOCKWAIT,  
       t2.SADDR,  
       t2.PADDR,  
       t2.TADDR,  
       t2.SQL_ADDRESS,  
       t1.LOCKED_MODE  
  from v$locked_object t1, v$session t2, dba_objects t3  
where t1.session_id = t2.sid  
   and t1.object_id = t3.object_id  
order by t2.logon_time desc