闪回数据

1：查询ID，根据时间

 
select timestamp_to_scn(to_timestamp('2012-04-11 17:00:00','YYYY-MM-DD HH24:MI:SS'))  id  from dual

2：根据ID找回数据

select * from 表名
AS OF SCN id
insert into xt_yh select * from 表名
AS OF SCN id