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update commit后找回update前数据

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Release: 2016-06-07 17:09:34
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t_sys_client 1.首先创建临时表 [sql] create table tmp as select * from t_sys_client where 1=0; 2. 将查询的记录插

这就需要那大概知道 第二个 update 时间了  

指定精准时间
insert into tmp1  select * from t2 as of timestamp to_timestamp('2011-07-12 10:30:00', 'YYYY-MM-DD HH24:MI:SS');


 

闪回是10g新特性,,那么闪回可以关掉吗?

闪回分 表闪回和数据库闪回,

数据库闪回默认是关闭的,需要手动开启

表闪回是通过 undo 闪回的,刚才的操作是通过 undo 恢复的

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