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Definitions from the Web

Nullif

Definition: A function used in SQL programming to determine if two expressions are equal. If the expressions are equal, the function returns NULL; otherwise, it returns the first expression.

Sample sentences:

1. The nullif function is often used to handle cases where two values might be equal but need to be treated differently.
2. Nullif(5, 5) will return NULL because both expressions are equal.
3. We used the nullif function in our database query to prevent a division by zero error.

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