Views with multiple associations

Question

How is it possible to tell JDeveloper 3.0 which associtations to
use in views when there are multiple associations defined
between two tables?
I try to define (part of) a view by:
- Add table 1
- Add table 2 with alias name a
- Add table 2 with alias name b
I can see from the generated XML file that JDeveloper uses the
same association for the two definitions of table 2 (2a and 2b)
in stead of two different associations (as I want).
How can I tell JDeveloper which assoctioans to use? (If I try to
edit the XML file, JDeveloper protests.)
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Answer 1

A small subset of my datamodel is:
Orders table:
- OrderId
- CustomerIdSender (foreign key to Customers)
- CustomerIdReceiver (foreign key to Customers)
Customer table:
- CustomerId (primary key)
- CustomerName
I try to make a view that gives me:
- OrderId
- CustomerIdSender
- CustomerIdReceiver
- CustomerNameSender (from Customers)
- CustomerNameReceiver (from Customers)
Procedure:
- ....new view OrderWithLookupvaluesView
- Choose table orders
- Choose table customers with alias CustomersSender
- Choose table customers with alias CustomersReceiver
I have to associations:
- OrderCustomerSend (defining foreign key constraint for
CustomerIdSender in orders)
- OrderCustomerRec (defining foreign key constraint for
CustomerIdReceiver in orders)
In the generated xml file for OrderWithLookupvaluesView i can
see that the definitions for CustomersSender and
CustomersReceiver both refer to the same association
OrderCustomerSend. The result of this is that the generated SQL
is wrong and that the lookup of the CustomerName is wrong.
How can i make JDeveloper understand that CustomerReceiver
should refer to associtation OrderCustomerReceiver and
CustomerSend to assoctiation OrderCustomerSend?
JDeveloper Team (guest) wrote:
: Henning,
: I am not sure what you are trying to do or why.
: The associations between tables are automatically picked
: up from the DB and an association object created.
: I am not sure why you need to over-ride this, but to
: change it in any way, simply right click on the association
: and select Edit.
: As far as editing XML files, you can edit XML files externally
: to JDeveloper, but to have JDeveloper use the update
definitions,
: you need to have JDeveloper reload your workspace
: (either switch workspaces or exit JDeveloper and re-enter).
: I believe you are possibly doing things in a way which is
: not correct, but without additional details of
: What you are trying to do, I can not state un-ambiguously.
: -JDeveloper Team
: henning (guest) wrote:
: : How is it possible to tell JDeveloper 3.0 which
associtations
: to
: : use in views when there are multiple associations defined
: : between two tables?
: : I try to define (part of) a view by:
: : - Add table 1
: : - Add table 2 with alias name a
: : - Add table 2 with alias name b
: : I can see from the generated XML file that JDeveloper uses
the
: : same association for the two definitions of table 2 (2a and
2b)
: : in stead of two different associations (as I want).
: : How can I tell JDeveloper which assoctioans to use? (If I
try
: to
: : edit the XML file, JDeveloper protests.)
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