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A selection of the form satisfying the union of all records satisfying individual simple conditions is

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A selection of the form satisfying the union of all records satisfying individual simple conditions is

(a) Conjunctive selection

(b) Disjunctive selection

(c) Negation

(d) None of the mentioned

This question was posed to me in final exam.

My question is based upon Query Processing topic in section Query Processing and Optimization of RDBMS

1 Answer

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Best answer
Correct choice is (b) Disjunctive selection

Explanation: A selection of the form satisfying the intersection of all records satisfying individual simple conditions is a disjunctive selection. This is a form of complex selection predicate.

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