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1. www.w3schools.com › SQL › func_sqlserver_isnullSQL Server ISNULL() Function - W3Schools

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

2. learn.microsoft.com › en-us › sqlISNULL (Transact-SQL) - SQL Server | Microsoft Learn

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   3 wrz 2024 · The following example uses ISNULL to replace a NULL value for Color, with the string None. USE AdventureWorks2022; GO SELECT ProductID, Name, ProductNumber, ISNULL(Color, 'None') AS Color FROM Production.Product; Here's a partial result set.

3. www.mssqltips.com › sqlservertip › 6776Using the SQL ISNULL() Function - SQL Server Tips

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   18 mar 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 can return the personal address of a person and if that does not exist return their business address.

4. www.sqlservertutorial.net › sql-server-system-functions › sql-server-isnull-functionSQL Server ISNULL Function

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   SQL Server ISNULL() function overview. The SQL Server ISNULL() function replaces NULL with a specified value. The following shows the syntax of the ISNULL() function: ISNULL(expression, replacement) Code language: SQL (Structured Query Language) (sql) The ISNULL() function accepts two arguments: expression is an expression of any type that is ...

5. www.geeksforgeeks.org › isnull-function-in-sql-serverSQL Server ISNULL () Function - GeeksforGeeks

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   2 wrz 2024 · SQL Server ISNULL() function syntax is: ISNULL(expression, value) Parameter : This method accepts two parameters. expression: The specified expression is to be checked to see if it’s NULL or not. value: The specified value to be returned, in case the expression is NULL. Example of SQL Server ISNULL() Function . Let’s look at some examples ...

6. simplesqltutorials.com › sql-server-isnullSQL Server ISNULL: Explained with Examples

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   24 mar 2024 · The ISNULL function is meant to return a non- NULL value in places where NULL may occur. Here is the general syntax: The idea is that if the <expression> passed in evaluates to NULL, the <replacer_value> is returned. Otherwise, if the passed in <expression> does not evaluate to NULL, the expression value is simply returned.

7. www.sqlshack.com › sql-isnull-function-2SQL ISNULL function - SQL Shack

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   10 maj 2019 · The SQL Server ISNULL function returns the replacement value if the first parameter expression evaluates to NULL. SQL Server converts the data type of replacement to data type of expression. Let’s explore SQL ISNULL with examples. Example 1: SQL Server ISNULL function in an argument. In this example, SQL ISNULL function returns the second ...