Question
A student is analyzing Query Processing. Which statement about cost-based optimization is correct?
Correct Answer: A
query plans are compared using estimated costs such as I/O, CPU, and cardinality
This statement is correct because cost-based optimization means that query plans are compared using estimated costs such as I/O, CPU, and cardinality.
This statement is correct because cost-based optimization means that query plans are compared using estimated costs such as I/O, CPU, and cardinality.
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