ORACLE锁表原因查询和解决办法

1. ORACLE中查看当前系统中锁表情况 

查询SQL如下： 

select sess.sid, 
       sess.serial#, 
       lo.oracle_username, 
       lo.os_user_name, 
       ao.object_name, 
       lo.locked_mode 
  from v$locked_object lo, dba_objects ao, v$session sess, v$process p 
where ao.object_id = lo.object_id 
   and lo.session_id = sess.sid
   and object_name = 'MOV_MSTR'
　

查询是什么SQL引起了锁表的原因，SQL如下： 

select l.session_id sid, 
       s.serial#, 
       l.locked_mode, 
       l.oracle_username, 
       s.user#, 
       l.os_user_name, 
       s.machine, 
       s.terminal, 
       a.sql_text, 
       a.action 
  from v$sqlarea a, v$session s, v$locked_object l 
where l.session_id = s.sid 
   and s.prev_sql_addr = a.address 
order by sid, s.serial#;

2. ORACLE解锁的方法 

alter system kill session 'SID，serial#';  SID和Serial#共同确定一唯一的session。