SQL>
show recyclebin;
select * from recyclebin where droptime > '2012-05-17 19:00:00';
flashback table【表名(droptime 的列值)】 to before drop;
show recyclebin;
select * from recyclebin where droptime > '2012-05-17 19:00:00';
flashback table【表名(droptime 的列值)】 to before drop;