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A selection of the form satisfying the intersection of all records satisfying individual simple conditions is(a) Conjunctive selection(b) Disjunctive selection(c) Negation(d) None of the mentionedI have been asked this question in unit test.My question is from Query Processing topic in section Query Processing and Optimization of RDBMS

Answer»

Right choice is (a) Conjunctive selection

To elaborate: A selection of the FORM satisfying the INTERSECTION of all records satisfying individual SIMPLE conditions is a conjunctive selection. This is a form of complex selection PREDICATE.



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