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You are reviewing the design of a student dimension table in an existing data warehouse hosted on SQL Azure. The current dimension design does not allow the retention of historical changes to student attributes such as ParentOccupation. You need to redesign the dimension to enable the full historical reporting of changes to multiple student attributes including ParentOccupation. What should you do?
Correct Answer: D
Explanation/Reference: Explanation: Adding a start and end date will give you this ability as when a record is inserted and given a start and end date, you'll have the ability to determine when they were active therefore giving you a retention of historical changes