oracle锁表

--查询死锁SQL
SELECT /*+ rule */ s.username,
decode(l.type,'TM','TABLE LOCK',
'TX','ROW LOCK',
NULL) LOCK_LEVEL,
o.owner,o.object_name,o.object_type,
s.sid,s.serial#,s.terminal,s.machine,s.program,s.osuser
from v$session s,v$lock l,dba_objects o
WHERE l.sid = s.sid
AND l.id1 = o.object_id(+)
AND s.username is NOT NULL

-
--杀死死锁的session, 释放死锁
alter system kill session '301,6';
--第一个参数是 sid, 第二个参数是 serial#
--可能有很多的死锁, 但是释放了前面的几个, 可能后面的锁就都解开了 ......
alter system set job_queue_processes=0--关闭JOB进程

SQL> show parameter job;
--SELECT SID, TYPE, ID1, ID2 FROM V$LOCK WHERE TYPE = ’JQ’;

select *
from (select *
from CX_AWK_ORDER_IMPORT_PRODUCT as of timestamp to_timestamp('2017-03-23 09:40:00', 'yyyy-mm-dd,hh24:mi:ss')) t
where t.head_id = '8a0c82a85aef1f08015aef4b506e1a47'