知道谁在锁表的方法

 解锁  
  select   t2.username,t2.sid,t2.serial#,t2.logon_time  
  from   v$locked_object   t1,v$session   t2  
  where   t1.session_id=t2.sid   order   by   t2.logon_time  
   
  alter   system   kill   session   'sid,serial#';  
   
  查看谁锁住的  
  select   t2.username  
  from   v$locked_object   t1,v$session   t2  
  where   t1.session_id=t2.sid   order   by   t2.logon_time  
   
  最方便的是工具查看   PL   DEVELOPER，   TOAD   之类工具