FLASHBACK TABLE

/*1.FLASHBACK QUERY*/
 
 --闪回到15分钟前
 select *  from orders   as of timestamp (systimestamp - interval '15' minute)   where ......
 这里可以使用DAY、SECOND、MONTH替换minute,例如:
 SELECT * FROM orders AS OF TIMESTAMP(SYSTIMESTAMP - INTERVAL '2' DAY)

 --闪回到某个时间点
 select  *   from orders   as of timestamp   to_timestamp ('01-Sep-04 16:18:57.845993', 'DD-Mon-RR HH24:MI:SS.FF') where ...
 
 --闪回到两天前
 select * from orders   as of timestamp (sysdate - 2) where.........
 
 
 /*2.FLASHBACK DROP*/
 
   1.flashback table orders to before drop;
   
   2.如果源表已经重建,可以使用rename to子句:
   flashback table order to before drop   rename to order_old_version;
   
 /*3.FLASHBACK TABLE*/
 
   1.首先要启用行迁移:
   alter table order enable row movement;
   2.闪回表到15分钟前:
   flashback table order   to timestamp systimestamp - interval '15' minute;
     闪回到某个时间点:
   FLASHBACK TABLE order TO TIMESTAMP    TO_TIMESTAMP('2007-09-12 01:15:25 PM','YYYY-MM-DD HH:MI:SS AM') 


本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/zhpsam109/archive/2007/12/05/1918962.aspx

未能启用行移动功能 不能闪回

 alter table binzhang ENABLE ROW MOVEMENT;

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