Oracle 基于scn号的不完全恢复

1、创建实验表t1。create table t1(a varchar2(10),b varchar2(10));insert into t1 values('aaaaa','aaaaa');commit;

3、t1表数据被篡改。update t1 set a='*****',b='*****';commit;

4、关闭数据库将数据库启动到mount。shutdown immediate;startup mount;