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Which of the following functions does an iterator not provide(a) Open()(b) Next()(c) Close()(d) Wait()I had been asked this question in a job interview.The question is from Evaluation of Expressions topic in division Query Processing and Optimization of RDBMS

Answer»

The correct answer is (d) Wait()

EXPLANATION: The ITERATOR does not provide the wait() FUNCTION but it provides OPEN(), NEXT() and close() operations.



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