PLSQL 执行下面语句

SELECT 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

找出来自己被锁的表名

object_name字段中，找到自己的机器

找到SID，SERIAL#字段放入下面语句运行即可解锁

alter system kill session 'SID,SERIAL#';

出现删错表数据的情况使用下面语句回滚到特定时间

select * from sys_info as of timestamp to_Date('2014-04-08 15:28:00', 'yyyy-mm-dd hh24:mi:ss')