利用閃回查看Oracle表歷史時刻數據

1.查看表歷史時刻數據

select * from tab_test AS OF TIMESTAMP to_timestamp('20140917 10:00:00','yyyymmdd hh24:mi:ss');

2、利用flashback table恢復表到過去某一時刻

alter table tab_test enable row movement;

flashback table tab_test to timestamp ('20140917 10:00:00','yyyymmdd hh24:mi:ss');

alter table tab_test disable row movement;

3、查看過去某一段時間內對表的操作，以確認需要恢復到的時間點

select SQL_TEXT,LAST_ACTIVE_TIME from v$sqlarea where LAST_ACTIVE_TIME >to_date('20140917 10:00:00','yyyymmdd hh24:mi:ss') and SQL_TEXT like '%tab_test%';

4、確認是否開啟閃回

select log_mode,flashback_on from v$database;