The ISNULL() function returns a specified value if the expression is NULL. If the expression is NOT NULL, this function returns the expression. Syntax

The ISNULL() function returns the replacement if the expression evaluates to NULL. Before returning a value, it implicitly converts the type of replacement to the type of the expression if …

Sep 3, 2024 · ISNULL replaces NULL with the specified replacement value.

May 10, 2019 · We can use SQL ISNULL to replace existing NULL values with a specific value. For example, we want to return Employee salary 10,000 if it is NULL in the Employee table. In …

Mar 18, 2021 · You can use the ISNULL() function to specify a hard-coded value or even use another column in the table for the join condition. Below is an example that shows how you …

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 …

May 30, 2025 · What is isnull() in Pandas? The isnull() function works exactly like isna() it checks for NaN values in a DataFrame or Series and returns a boolean mask. It’s essentially an alias …

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. The ISNULL …

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 …

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.