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Question 214 - COF-R02 discussion

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What is an advantage of using an explain plan instead of the query profiler to evaluate the performance of a query?

A.
The explain plan output is available graphically.
Answers
A.
The explain plan output is available graphically.
B.
An explain plan can be used to conduct performance analysis without executing a query.
Answers
B.
An explain plan can be used to conduct performance analysis without executing a query.
C.
An explain plan will handle queries with temporary tables and the query profiler will not.
Answers
C.
An explain plan will handle queries with temporary tables and the query profiler will not.
D.
An explain plan's output will display automatic data skew optimization information.
Answers
D.
An explain plan's output will display automatic data skew optimization information.
Suggested answer: B
asked 23/09/2024
Yrae Franca de Pinho Gomes
50 questions
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