Oracle ->> Oracle下实现SQL Server的TOP + APPLY

with a as (
select grp_factor from (select distinct grp_factor from numbers where id < 10 order by grp_factor) t
where rownum <= 5)

select b.id, a.grp_factor
from a cross apply(select id from (select id from numbers b where a.grp_factor = b.grp_factor order by id) t where rownum<=3)b