Business Components help

Question

Hi All,
I'm trying to work with the view objects and such in JDeveloper. I think maybe I'm missing something. I can work with the simple master-detail stuff just fine, but is there any material that is more in-depth than that?
How would i use business components to return the same results as this (no, i didn't test to see if the query works, but hopefully the syntax is good enough for folks to understand what i am trying to accomplish):
SELECT
A.CUST_ID, A.STORE_NUM, B.ISSUE_DESC, C.CUST_NAME, D.DESCRIPTION, E.DESCRIPTION
FROM
OPP_MASTER A, OPP_DETAIL B, CUSTS C, (SELECT DESCRIPTION FROM MENUS) D,
(SELECT DESCRIPTION FROM MENUS) E
WHERE
B.FOREIGN_KEY = A.ID, C.ID = A.CUST_ID, D.ID = A.MAIN_CAT, E.ID = A.SUB_CAT
Is there any material on creating more complex view objects?
Thanks a bunch!

Answer 1

Idan,
I see some problems there with the syntax that is perhaps confusing your question for me. Let me re-phrase the query to see if it's what you mean:
SELECT a.cust_id, a.store_num, b.issue_desc, c.cust_name,
(select description from menus m where m.id = a.main_cat) description_main,
(select description from menus m where m.id = a.sub_cat) description_sub
from opp_master a, opp_detail b, custs c
where b.foreign_key = a.id
and c.id = a.cust_id
Is this what you're trying to do? is the reason for the in-line views in your example to avoid outer joins between opp_master and menus?
Perhaps you could describe what you're trying to get and we could help with the query and view object.
Regards,
John