利用闪回查看Oracle表历史时刻数据

1.查看表历史时刻数据
###select * from GL_CODE_COMBINATIONS AS OF TIMESTAMP to_timestamp('20210112 14:58:48','yyyymmdd hh24:mi:ss');

2、利用flashback table恢复表到过去某一时刻
###alter table GL_CODE_COMBINATIONS enable row movement;
###flashback table GL_CODE_COMBINATIONS to timestamp ('20210112 14:58:48','yyyymmdd hh24:mi:ss');
###alter table GL_CODE_COMBINATIONS disable row movement;

3、查看过去某一段时间内对表的操作，以确认需要恢复到的时间点
###select SQL_TEXT,LAST_ACTIVE_TIME from v$sqlarea where LAST_ACTIVE_TIME >to_date('20210112 14:58:48','yyyymmdd hh24:mi:ss') and SQL_TEXT like '%GL_CODE_COMBINATIONS%';

4、确认是否开启闪回
###select log_mode,flashback_on from v$database;