Dealing with Denormalized Tables - jdev 11.1.2.3 redhat 5.8

Hello:
In a Legacy oracle system, we have many tables that are not in 3rd normal form. i.e. they are denormalized.
Example: A student has many teachers and a teacher has many students... a classic many-to-many. The normal solution would be to create an association table to hold the intersection.
However in a legacy system, we have the student table that has columns of teacher1, teacher2, teacher 3, teacher4, teacher5, teacher6, teacher7 and no association table.
Without modifying the table structures, what is the best way to deal with this in a ADF application. My guess would be to create 7 view links and write code to implement
any logical rules.
Does anyone have other ways around this problem?
Thanks for the help.

Hi,
how about using a database view
e.g.
select student_id, teacher1 from your_table
UNION
select student_id, teacher2 from your_table
UNION
select student_id, teacher3 from your_table
Create an entity and view object based on the database view. If you need teachers to be updateable, create stored procedures and override the entity object doDML method for insert/update/delete
Frank

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Message was edited by:
Mario Müller

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