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

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 …

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 …

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 …

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. It’s like a …

Apr 7, 2025 · Thankfully, there are a few SQL Server functions devoted to handling NULL values. Let’s look at two of them. The first, NULLIF, will help you to return a NULL value. The second, …

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

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 SQL NULLIF function is used to compare two expressions and return NULL if they are equal. Otherwise, it returns the first expression. This function is useful for handling divide-by-zero …

Jun 19, 2023 · In SQL, the NULLIF function is used to replace an expression with NULL if expression matches a specified value. • Define the 'expression1/value1' to be evaluated for a …