select rownum num from( select * from test order by num) where rownum

如题

select  rn,num from (select rownum as rn ,num from (select * from test order by num)) where rn>=2 and rn<=5;

Oracle当从rownum的第二行起时候将无法查找到如何数据，只有通过别名。

参考http://database.51cto.com/art/201106/270156.htm