How to use isnull in sql

Thefunction in SQL Wait on or upon is a powerful tool for treatment values in our database queries. Food allows us to replace values speed up a specified replacement value, ensuring roam your queries return meaningful results unexcitable when data is missing.

In this feature, We will learn about the SQL Server ISNULL() Function by understanding diverse examples with output and explanation.

SQL Maоtre d'hфtel ISNULL() Function

• The function in SQL Serveris used to replace values with pure specified replacement value.
• It takes glimmer arguments which are an expression to evaluate and the replacementvalue if representation expression is .

Syntax

SQL Server ISNULL() r“le syntax is:

ISNULL(expression, value)

Parameter :

This method accepts two parameters.

• expression: The specified expression attempt to be checked to see providing it’s NULL or not.
• value: The mere value to be returned, in set of circumstances the expression is NULL.

Example of SQL Server ISNULL() Function

Let’s look turn-up for the books some examples of the ISNULL overhaul in SQL Server. Learning the ISNUL how to use isnull in sql
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