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Question 52/95
View the Exhibit.
Which option represents the steps to add a relationship between OrdVO and ItemVO and create a master-
detail hierarchy for the same in the data model? (Choose the best answer.)
Which option represents the steps to add a relationship between OrdVO and ItemVO and create a master-
detail hierarchy for the same in the data model? (Choose the best answer.)
Correct Answer: B
Explanation/Reference:
When you want to show the user a set of master rows, and for each master row a set of coordinated detail
rows, then you can create view links to define how you want the master and detail view objects to relate.
To create an association-based view link, you use the Create View Link wizard.
Note: A master-detail relationship is established when a view link is created to associate two view object
instances. A view link represents the relationship between two view objects, which is usually, but not
necessarily, based on a foreign-key relationship between the underlying data tables. The view link
associates a row of one view object instance (the master object) with one or more rows of another view
object instance (the detail object).
References: https://docs.oracle.com/middleware/1213/adf/develop/adf-bc-vo-master-
detail.htm#ADFFD23705
When you want to show the user a set of master rows, and for each master row a set of coordinated detail
rows, then you can create view links to define how you want the master and detail view objects to relate.
To create an association-based view link, you use the Create View Link wizard.
Note: A master-detail relationship is established when a view link is created to associate two view object
instances. A view link represents the relationship between two view objects, which is usually, but not
necessarily, based on a foreign-key relationship between the underlying data tables. The view link
associates a row of one view object instance (the master object) with one or more rows of another view
object instance (the detail object).
References: https://docs.oracle.com/middleware/1213/adf/develop/adf-bc-vo-master-
detail.htm#ADFFD23705
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