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70-768 · Question #38

70-768 Question #38: Real Exam Question with Answer & Explanation

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Question

You use Microsoft SQL Server Profile to evaluate a query named Query. The Profiler report indicates the following issues: - At each level of the query plan, a low total number of rows are processed. - The query uses many operations. This results in a high overall cost for the query. You need to identify the information that will be useful for the optimizer. What should you do?

Options

  • AStart a SQL Server Profiler trace for the event class Auto Stats in the Performance event
  • BCreate one Extended Events session with the sqlserver.missing_column_statistics eventadded.
  • CStart a SQL Server Profiler trace for the event class Soft Warnings in the Errors and Warnings
  • DCreate one Extended Events session with the sqlserver.missing_join_predicate event added.

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