When does the predicate is null succeed?(a) If the value on which it is applied is finite(b) If the value on which it is applied is invalid(c) If the value on which it is applied is blank(d) If the value on which it is applied is more than the allowed limitI had been asked this question in semester exam.My question is from Set Operations in division Introduction to Relational Model and Sql of RDBMS

When does the predicate is null succeed?(a) If the value on which it i

1.	When does the predicate is null succeed?(a) If the value on which it is applied is finite(b) If the value on which it is applied is invalid(c) If the value on which it is applied is blank(d) If the value on which it is applied is more than the allowed limitI had been asked this question in semester exam.My question is from Set Operations in division Introduction to Relational Model and Sql of RDBMS
Answer» The correct choice is (C) If the VALUE on which it is applied is blank Explanation: The is NULL PREDICATE succeeds when the value on which it is applied is blank/null.

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