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Which of the following set operations does the selection operation distribute over?(a) Union(b) Intersection(c) Difference(d) All of the mentionedThe question was posed to me in examination.My question comes from Transformation of Relational Expressions in chapter Query Processing and Optimization of RDBMS

Answer»

Correct answer is (d) All of the mentioned

The best explanation: The SELECTION OPERATION distributes over SET union, intersection, set difference.



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