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Question 29 - DP-300 discussion

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You are designing a dimension table in an Azure Synapse Analytics dedicated SQL pool.

You need to create a surrogate key for the table. The solution must provide the fastest query performance. What should you use for the surrogate key?

A.
an IDENTITY column
Answers
A.
an IDENTITY column
B.
a GUID column
Answers
B.
a GUID column
C.
a sequence object
Answers
C.
a sequence object
Suggested answer: A

Explanation:

Dedicated SQL pool supports many, but not all, of the table features offered by other databases. Surrogate keys are not supported. Implement it with an Identity column.

Reference: https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/sql-data-warehouse-tables-overview

asked 02/10/2024
CCF AG Alexander Seidler
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