查看oracle数据库中表是否被锁

 select p.spid,
       c.object_name,
       b.session_id,
       b.oracle_username,
       b.os_user_name,
       a.machine,
       a.program
  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
 order by b.session_id