DP-203 · Question #256
You work in an Azure Transformational Logics (ATL) company and you have been given the responsibility to create and update query-optimization statistics utilizing the Synapse SQL resources in a dedica
The correct answer is D. Update static distribution columns more frequently. The below-given guiding principles are recommended to update the statistics during the load Option A is incorrect. It is true that you should ensure that every loaded table is having at least 1 statistics object updated. Option B is incorrect. The given one is also a guiding prin
Question
You work in an Azure Transformational Logics (ATL) company and you have been given the responsibility to create and update query-optimization statistics utilizing the Synapse SQL resources in a dedicated SQL pool. The following are the guiding principles recommended for updating the statistics during the load process. Which of the following is/are not true?
Options
- AEnsure that every loaded table is having at least 1 statistics object updated
- BFocus on the columns participating in ORDER BY, GROUP BY, JOIN and DISTINCT clauses
- CUpdate "ascending key" columns like order dates more frequently as these values are not
- DUpdate static distribution columns more frequently
- ENone of these
How the community answered
(29 responses)- A7% (2)
- B14% (4)
- C3% (1)
- D72% (21)
- E3% (1)
Explanation
The below-given guiding principles are recommended to update the statistics during the load Option A is incorrect. It is true that you should ensure that every loaded table is having at least 1 statistics object updated. Option B is incorrect. The given one is also a guiding principle to update the statistics during the Option C is incorrect. The given one is also a guiding principle to update the statistics during the Option D is correct. Rather than more frequently, you need to update static distribution columns less frequently. Option E is incorrect. Option D describes the wrong principle. https://docs.microsoft.com/en-us/azure/synapse-analytics/sql/develop-tables-statistics#update-
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