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The iterator maintains the __________ of its execution in between calls so that successive next() requests receive successive result tuples.

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The iterator maintains the __________ of its execution in between calls so that successive next() requests receive successive result tuples. (a) State (b) Transition (c) Rate (d) Block The question was asked in unit test. The doubt is from Evaluation of Expressions 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 choice is (a) State The explanation is: The function close() tells an iterator that no more tuples are required.

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