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The results of each intermediate operation are created and then are used for evaluation of the next-level operations. This is called (a) Materialized evaluation (b) Expression evaluation (c) Tree evaluation (d) Tree materialization This question was posed to me in quiz. This interesting question is from Evaluation of Expressions topic in section Query Processing Techniques of Database Management Select the correct answer from above options Interview Questions and Answers, Database Interview Questions and Answers for Freshers and Experience

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Correct option is (a) Materialized evaluation Easy explanation - The cost of a materialized evaluation is not simply the sum of the costs of the operations involved.

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