SQL Server ISNULL () Function - W3Schools
Definition and Usage The ISNULL () function returns a specified value if the expression is NULL. If the expression is NOT NULL, this function returns the expression. Syntax ISNULL …
ISNULL (Transact-SQL) - SQL Server | Microsoft Learn
Nov 18, 2025 · The following example uses ISNULL to replace a NULL value for Color, with the string None.
SQL Server ISNULL Function
In this tutorial, you will learn how to use the SQL Server ISNULL () function to replace NULL with a specified value.
SQL Server ISNULL Function - Replace NULL Values
The ISNULL () function returns the input expression value if it is not a NULL. In the following example, the given expression 'SQL Server' is not a null value and hence ISNULL returns the …
SQL ISNULL Function Examples - SQL Server Tips
Mar 18, 2021 · Learn about the SQL Server ISNULL function and the many ways it can be used with TSQL statements.
SQL Server ISNULL: Explained with Examples
Mar 24, 2024 · The ISNULL function in SQL Server is meant to be an error-handling tool of sorts. It's meant to return a non-NULL value in places where NULL may occur.
SQL Server: ISNULL Function - TechOnTheNet
This SQL Server tutorial explains how to use the ISNULL function in SQL Server (Transact-SQL) with syntax and examples. In SQL Server (Transact-SQL), the ISNULL function lets you return …
ISNULL – SQL Tutorial
In SQL Server, the ISNULL function is used to replace NULL values with a specified replacement value. It is a convenient way to handle NULLs in SQL queries and expressions.
SQL Server ISNULL () Function - GeeksforGeeks
Jul 23, 2025 · The ISNULL() function in SQL Server is a powerful tool for handling NULL values in our database queries. It allows us to replace NULL values with a specified replacement value, …
SQL ISNULL Function - Tutorial Gateway
The SQL Server ISNULL function validates whether the expression is NULL or not. If it is NULL, then isnull replace them with other expression.