不能直接用rownum，要查询出来以后用别名转换。
以EMP表为范例,取4至10行：
sql;">
select * from (select rownum id,t.* from emp t) where id between 4 and 10;
有需要排序的，一定要这样处理：
sql;"> select * from (select rownum rn,t.* from (
select a.* from eba02 a order by eba003) t where rownum <= 110)
where rn >= 110;
