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Question 21/21

You are designing a slowly changing dimension (SCD) for supplier data in an Azure Synapse Analytics dedicated SQL pool.
You plan to keep a record of changes to the available fields.
The supplier data contains the following columns.

Which three additional columns should you add to the data to create a Type 2 SCD? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

Recent Comments (The most recent comments are at the top.)

David Webb - Nov 16, 2021

The answer should be A. effective end date, F. effective start date and D. surrogate primary key. For type 2 SCD, each row of records should have a start and end date to indicate the effectiveness of the record. Also, each row should have a unique number to identify the row, so a surrogate primary key is needed. That's the basic of type 2 SCD.

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