1\將表閃回到某一時間點: 

閃回操作前啟用行移動功能 

Sql代碼 
alter table emp enable row movement; 

執(zhí)行閃回語句: 
Sql代碼 
flashback table emp to timestamp to_timestamp('20120709195000','YYYYMMDDHH24:MI:SS'); 

2\閃回回收站: 
Java代碼 
SQL>show recyclebin; 
SQL>drop table emp; 
SQL>show recyclebin; 
ORIGINAL NAME RECYCLEBIN NAME OBJECT TYPE DROP TIME 
EMP BIN$b+XkkO1RS5K10uKo9BfmuA==$0 TABLE 2012-11-07:15:30:47 

SQL>flashback table emp to before drop;或 
SQL>flashback table "BIN$b+XkkO1RS5K10uKo9BfmuA==$0" to before drop; 

清理回收站： 
清除回收站中的單個表：purge table emp 
清除整個回收站：purge recyclebin 
清除不同的對象回收站：purge user_recyclebin或purge dba_recyclebin 
徹底刪除一個table: SQL>drop table emp purge; --表不能被恢復了。 

3\閃回事物查詢: 
Sql代碼 
select * from flashback_transaction_query where TABLE_NAME= 'EMP'