Q. A sequence of primitive operations that can be used to evaluate a query are called as __________

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Q. The lowest level operator to access data in query processing is _______

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Q. Search algorithms that use an index are referred to as _________

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Q. Sorting of relations that do not fit in memory is called as _______

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Q. A selection of the form satisfying the intersection of all records satisfying individual simple conditions is

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Q. A selection of the form satisfying the union of all records satisfying individual simple conditions is

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Q. A selection of the form giving all the records not satisfying simple individual conditions is ______

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Q. Which of the following can be implemented?

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Q. If the results of one operation are passed on to the other, it is called as ________

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Q. The result of each intermediate operation are created and then are used for valuation of the next level operations, this evaluation is called as ________

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Q. If the system makes repeated requests for tuples from the operation at the top of the table, it is called as _________

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Q. If the operations do not wait to produce tuples, then it is called as _________

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Q. State true or false: Sorting is an inherently blocking operation

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Q. State true or false: Join is an inherently blocking operation

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Q. Which of the following techniques does not exist?

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Q. State true or false: Hybrid hash join is partially pipelined on the probe relation

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Q. The usage of two buffers, with one continuing execution of the algorithm while the other is written is called as __________

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Q. Which of the following functions does an iterator not provide

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Q. If on every legal database instant, the two expressions generate the same set of tuples, the expressions are called as

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Q. State true or false: Selection operations are commutative

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