Oracle SQL execution order Issues, i how to fix it in OBIEE. My God.

Question

i create business model in Admin Tools, the model just like below sql ( viewA and viewB both are view):
select distinct b.name
from viewA a, viewB b
where a.con_id = b.con_id
and a.b_id = b.id
and b.b_id=4
and a.student_id=1234
but i use this sql only can get one result(incorrect result).
if i change it to below sql, it can get 2 result(correct result), my questions is i cant control table execute order in answer. so i how to fix this issues .please give me some advices. thanks
select /*+ ordered */ distinct b.name
from
viewA a,
viewB b
where a.con_id = b.con_id
and a.b_id = b.id
and b.b_id=4
and a.student_id=1234
;

Answer 1

It seems that you can't choose the order. It use always the dimension before the fact table.
To resolve your issue, I will ask me why I have to add the ordered hint to have the good result.
How many record do you have when you performed :
select a.b_id
from viewA a
where a.student_id=1234and
select b.b_id, b.name
from viewB b
where b.b_id=4What means b_id ?