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State true or false: Making multiple copies of the same sub-expressions must be avoided(a) True(b) FalseI have been asked this question during an interview.Asked question is from Choice of Evaluation Plans in chapter Query Processing and Optimization of RDBMS |
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Answer» CORRECT ANSWER is (a) True The explanation is: For promoting SPACE efficiency, making multiple copies of the same sub-expressions must be AVOIDED. |
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