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QWhat is the goal of a query optimizer in a DBMS?

ID: #13512 Database Concepts MCQs 111 views
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#13512Q ID
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Database Concepts MCQsTopic
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  • A To define the hardware configuration for the DBMS ✔ ✖
  • B To monitor the performance of the database system ✔ ✖
  • C To choose the most efficient query execution plan ✔ ✖
  • D To validate the integrity of the database ✔ ✖
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Answer: C) To choose the most efficient query execution plan
Explanation: The goal of a query optimizer in a DBMS is to choose the most efficient query execution plan.
The query optimizer analyzes the query and available data statistics to determine the optimal sequence of operations and access paths to retrieve the requested data.
By selecting the best plan, the optimizer aims to minimize resource usage and maximize query performance.

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