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State true or false: Multiple equivalence rules can be used one after the other on a query

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State true or false: Multiple equivalence rules can be used one after the other on a query

(a) True

(b) False

I have been asked this question during an interview.

Asked question is from Transformation of Relational Expressions topic in portion Query Processing and Optimization of RDBMS

1 Answer

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Best answer
The correct answer is (a) True

For explanation I would say: Multiple equivalence rules can be used one after the other on a query or on parts of the query. This can be used to simplify the query greatly thus reducing its time complexity.

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