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Which of the following is incorrect about query optimization? Your answer: Users have limited control on query optimization process. Most of the operations are handled

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Which of the following is incorrect about query optimization? Your answer: Users have limited control on query optimization process. Most of the operations are handled by DBMS. o Nested (inner-outer) loop method is least efficient than Sort-merge join method. Leaf nodes of a query tree represents the output attributes of a query. Transformations are applied for optimizing a raw query tree

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Advances In Database Technology Edbt 94 4th International Conference On Extending Database Technology Cambridge United Kingdom March 1994 Proceedings Lncs 779

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