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

Nov 22, 2024 · NULLIF returns the first expression if the two expressions are not equal. If the expressions are equal, NULLIF returns a null value of the type of the first expression.

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

In SQL Server (Transact-SQL), the NULLIF function compares expression1 and expression2. If expression1 and expression2 are equal, the NULLIF function returns NULL.

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 …

The SQL NULLIF function is a powerful tool that allows you to compare two expressions and return a specific value based on the result of the comparison. This function is commonly used …

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.

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 …

Otherwise, it returns the first expression. This function is useful for handling divide-by-zero errors and managing conditional comparisons in SQL queries. In this tutorial, we will explore the …