What is the use of the NULLIF function?

Started by Devlin, November 21, 2015, 09:31:11 PM

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Rafferty

November 21, 2015, 09:31:11 PM Last Edit: April 22, 2017, 12:20:14 PM by Sofyene
Hi everyone, I'd like to ask you a silly question, what is the use of the nullif function? Thank you for giving me your opinion quickly.

Cohen

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April 22, 2017, 12:20:55 PM
NULLIF compares expr1 and expr2 . If they are equal, then the function returns null. If they are not equal, then the function returns expr1.
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