Important Points About SQL Server ISNULL Function

ISNULL() Function in SQL Server

The ISNULL() function in SQL Server is used to replace NULL values with a specified replacement value....

Syntax

SQL Server ISNULL() function syntax is:...

SQL Server ISNULL() Function Example

Let’s look at some examples of the ISNULL function in SQL Server. Learning the ISNULL function with examples will help in understanding the concept better....

Important Points About SQL Server ISNULL Function

The ISNULL() function is used to return a specified value if the expression is NULL, otherwise it returns the expression itself. It is used to replace NULL values in expressions or table columns with a meaningful value. It is different from the IS NULL operator, which is used to check if a value is NULL. The ISNULL() function is useful for handling NULL values in queries and providing alternative values when NULL is encountered....