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The predicate in a where clause can involve Boolean operations such as and. The result of true and unknown is_______ false and unknown is _____ while unknown and unknown is _____(a) Unknown, unknown, false(b) True, false, unknown(c) True, unknown, unknown(d) Unknown, false, unknownI have been asked this question in an online quiz.This intriguing question comes from Null Values Operations topic in section SQL : Queries, Constraints and Triggers of Database Management |
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Answer» CORRECT choice is (d) Unknown, FALSE, unknown The best explanation: NONE. |
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