Nov 18, 2025 · Returns a null value if the two specified expressions are equal. For example, SELECT NULLIF(4,4) AS Same, NULLIF(5,7) AS Different; returns NULL for the first column …

Definition and Usage The NULLIF () function returns NULL if two expressions are equal, otherwise it returns the first expression. Syntax NULLIF (expr1, expr2)

Jul 23, 2025 · The NULLIF () function simplifies SQL queries by reducing the need for complex conditional logic using CASE statements. It is commonly used to prevent errors such as …

In this tutorial, you will learn how to use the SQL NULLIF function to compare two values and return NULL if they are equal.

Apr 7, 2025 · If you want to check data and return a NULL value, you can use the NULLIF function. If you want to check for a NULL value and return a different value, use the ISNULL …

This tutorial introduces you to the SQL Server NULLIF expression and gives you some practical examples of using the NULLIF expression.

The NULLIF function in SQL is a concise yet powerful tool for handling specific data scenarios, allowing you to convert a value to NULL when it matches a specified condition.

This SQL Server tutorial explains how to use the NULLIF function in SQL Server (Transact-SQL) with syntax and examples. In SQL Server (Transact-SQL), the NULLIF function compares …

In summary, the SQL NULLIF function is a very useful tool for working with data that may contain null or empty values. It allows you to easily compare two expressions and return NULL if they …

The NULLIF expression in SQL Server is a useful function that allows you to compare two expressions and return a null value if they are equal. It helps you handle situations where you …