Which of the following are included in a query execution pla - CompTIA Data + DA0-001
Question
Which of the following are included in a query execution plan (Select TWO)?
Answers
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correct
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correct
Explanation
Correct Answers:
c) Estimated Execution Plan
d) Actual Execution Plan
A query execution plan is a detailed breakdown of how a database engine will execute a query. It helps in performance tuning by showing how tables, indexes, and operations are used during execution.
- Estimated Execution Plan – Shows a predicted plan based on database statistics before executing the query. It helps in analyzing performance without running the actual query.
- Actual Execution Plan – Shows the actual steps taken by the database engine when executing the query, including runtime statistics and potential inefficiencies.
Incorrect Answers:
Indexing – Indexing is a technique used to optimize searches, but it is not a part of the execution plan itself. Instead, execution plans may show how indexes are used.
Subquery – A subquery is a query within another query, but it is a query component, not part of the execution plan itself. The execution plan may include details on how subqueries are executed, but they are not a plan type.
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