Which function returns NULL if expr1 = expr2?(a) CASE(b) IF()(c) IFNUL – InterviewSolution

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1.	Which function returns NULL if expr1 = expr2?(a) CASE(b) IF()(c) IFNULL()(d) NULLIF()
Answer» Right option is (d) NULLIF() The explanation: The ‘CASE’ is used for the case operator. The function ‘IF()’ is used for the if/else construct. The function ‘IFNULL()’ is the Null if/else construct. ‘NULLIF()’ returns NULL if expr1 = expr2.

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