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1. www.w3schools.com › Sql › func_sqlserver_nullifSQL Server NULLIF() Function - W3Schools

   www.w3schools.com › Sql › func_sqlserver_nullif

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   Definition and Usage. The NULLIF () function returns NULL if two expressions are equal, otherwise it returns the first expression. Syntax. NULLIF (expr1, expr2) Parameter Values. Technical Details. More Examples. Example. Compare two expressions: SELECT NULLIF('Hello', 'Hello'); Try it Yourself » Example. Compare two expressions:

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2. www.geeksforgeeks.org › sql-general-functions-nvl-nvl2-decode-coalesce-nullifSQL General Functions - GeeksforGeeks

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   8 sie 2024 · 5. NULLIF() The NULLIF function compares two expressions. If they are equal, the function returns null. If they are not equal, the function returns the first expression. You cannot specify the literal NULL for first expression. Syntax – NULLIF (expr_1, expr_2) Examples –

3. hightouch.com › sql-dictionary › sql-nullifSQL NULLIF - Syntax, Use Cases, and Examples | Hightouch

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   The SQL NULLIF function is used to compare two expressions or values and return NULL if they are equal. It provides a way to handle specific cases where you want to treat equality as a special condition by substituting it with a NULL value.

4. www.sqltutorial.org › sql-comparison-functions › sql-nullifSQL NULLIF Function: Usage of a Handy SQL Control Flow ... - SQL...

   www.sqltutorial.org › sql-comparison-functions › sql-nullif

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   The NULLIF function accepts two arguments. If the two arguments are equal, the NULLIF function returns NULL, otherwise, it returns the first argument. The following illustrates the syntax of the NULLIF function. NULLIF (argument_1,argument_2);Code language:SQL (Structured Query Language)(sql)

5. www.machinelearningplus.com › sql › sql-null-functionsUnderstanding SQL Null Functions - Machine Learning Plus

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   The most common NULL functions are ISNULL(), COALESCE(), and NULLIF(). 1. ISNULL (): The ISNULL() function is used to replace NULL values with a specified value. The syntax of the ISNULL() function is as follows: ISNULL(expression, value_if_null) expression: the field or value to check for NULL.

6. www.sqlitetutorial.net › sqlite-functions › sqlite-nullifWhen and How to Use the SQLite NULLIF Function - SQLite Tutorial

   www.sqlitetutorial.net › sqlite-functions › sqlite-nullif

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   The SQLite NULLIF function accepts two arguments and returns a NULL value if they are equal. If the first argument is not equal to the second one, the NULLIF function returns the first argument. In case both arguments are NULL, the NULLIF function returns a NULL value.

7. www.tutorialspoint.com › sql › sql-logical-funtions-nullifSQL - NULLIF() Function - Online Tutorials Library

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   The SQL NULLIF() function is, used to verify whether the two expressions are equal or not. It accepts two parameters expr1 and expr2 and returns NULL , if both the expression are equal; else returns the first expression.