1\将表闪回到某一时间点:
闪回操作前启用行移动功能
alter table emp enable row movement;
执行闪回语句:
flashback table emp to timestamp to_timestamp('20120709195000','YYYYMMDDHH24:MI:SS');
2\闪回回收站:
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:
清除回收站中的单个表:purge table emp
清除整个回收站:purge recyclebin
清除不同的对象回收站:purge user_recyclebin或purge dba_recyclebin
彻底删除一个table: SQL>drop table emp purge; --表不能被恢复了。
3\闪回事物查询:
select * from flashback_transaction_query where TABLE_NAME= 'EMP'