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SQL Server FAQ - Passing Values to User Defined Function Parameters

By: FYIcenter.com

(Continued from previous topic...)

How To Provide Values to User Defined Function Parameters?

If a user defined function is created with parameters, you need pass values to those parameters when calling the function with one of two formats listed below:

expression... function_name(value_1, value_2, ... value_n)...

The tutorial exercise below shows you how to pass values to function parameters:

USE FyiCenterData;
GO

DROP FUNCTION Welcome;
GO

CREATE FUNCTION Welcome(@url VARCHAR(40))
   RETURNS VARCHAR(40)
   AS BEGIN
      RETURN 'Welcome to '+@url;
   END;
GO

PRINT 'Hi there, '+dbo.Welcome('dba.FYIcenter.com');
GO
Hi there, Welcome to dba.FYIcenter.com

PRINT 'Hi there, '+dbo.Welcome('dev.FYIcenter.com');
GO
Hi there, Welcome to dev.FYIcenter.com

(Continued on next topic...)

1. What Are User Defined Functions?
2. What Are the Differences between User Defined Functions and Stored Procedures?
3. How To Create a Simple User Defined Function?
4. How To Use User Defined Functions in Expressions?
5. How To List All User Defined Functions in the Current Database?
6. How To Drop an Existing User Defined Function?
7. How To Generate CREATE FUNCTION Script on an Existing Function?
8. How To Get the Definition of a User Defined Function Back?
9. How To Modify an Existing User Defined Function?
10. How To Create User Defined Functions with Parameters?
11. How To Provide Values to User Defined Function Parameters?
12. Can You Pass Expressions to Function Parameters?
13. How To Provide Default Values to Function Parameters?
14. How Many Categories of Functions based Their Return Modes?
15. How Many Ways to Create Table-Valued Functions?
16. How To Create an Inline Table-Valued Function?
17. How To Create an Multi-Statement Table-Valued Function?