You generate an Entity Data Model from your application database. The resulting model includes an entity named Person. The Person entity type has two properties - HireDate and EnrollmentDate. You add entity types Instructor and Student. You need to modify the model to ensure the following:
* All Person rows with a null EnrollmentDate and a nonnull HireDate must map to the Instructor type.
* All Person rows with a nonnull EnrollmentDate and a null HireDate must map to the Instructor type.
* Application code must be able to refer to both generated classes by using a common base class.
What should you do? (Each correct answer presents part of the solution. Choose two.)

 Posted by Rajkatie on 8/28/2012 | Category: ADO.NET Interview questions | Views: 1255 | Points: 40
Select from following answers:
  1. Modify Instructor and Student entity types to inherit from Person.
  2. Add a condition to the Instructor mapping details.
  3. Add a condition to the Student mapping details.
  4. All Above

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Source: MeasureUp.Com | | Alert Moderator 

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