gs gs114 Query Processing and Optimization - Choice of Evaluation Plans - Quiz No.1

gs gs114 Relational Database Management System Quiz

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Question 1: A ________ explores the space of all query evaluation plans that are equivalent to a given query.
Question 2: What is the disadvantage of cost based optimizers?
Question 4: The rule that allows transformation of a logical operation to a physical operation is called
Question 7: The join orders where the right operand of each join is in one of the initial relations are called as ________
Question 8: Caching and reuse of query plans is called as ________
Question 9: What technique is used for the evaluation of a query with a nested sub query?


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