SQL Server tutorial for beginners - Optional parameters in sql server stored procedures Part 68

Text version of the video http://csharp-video-tutorials.blogspot.com/2013/09/part-68-optional-parameters-in-sql.html Healthy diet is very important both for the body and mind. If you like Aarvi Kitchen recipes, please support by sharing, subscribing and liking our YouTube channel. Hope you can help. https://www.youtube.com/channel/UC7sEwIXM_YfAMyonQCrGfWA/?sub_confirmation=1 Slides http://csharp-video-tutorials.blogspot.com/2013/09/part-68-optional-parameters-in-sql_16.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists Parameters of a sql server stored procedure can be made optional by specifying default values. We wil be using table tblEmployee for this Demo. CREATE TABLE tblEmployee ( Id int IDENTITY PRIMARY KEY, Name nvarchar(50), Email nvarchar(50), Age int, Gender nvarchar(50), HireDate date, ) Insert into tblEmployee values ('Sara Nan','[email protected]',35,'Female','1999-04-04') Insert into tblEmployee values ('James Histo','[email protected]',33,'Male','2008-07-13') Insert into tblEmployee values ('Mary Jane','[email protected]',28,'Female','2005-11-11') Insert into tblEmployee values ('Paul Sensit','[email protected]',29,'Male','2007-10-23') Name, Email, Age and Gender parameters of spSearchEmployees stored procedure are optional. Notice that, we have set defaults for all the parameters, and in the "WHERE" clause we are checking if the respective parameter IS NULL. Create Proc spSearchEmployees @Name nvarchar(50) = NULL, @Email nvarchar(50) = NULL, @Age int = NULL, @Gender nvarchar(50) = NULL as Begin Select * from tblEmployee where (Name = @Name OR @Name IS NULL) AND (Email = @Email OR @Email IS NULL) AND (Age = @Age OR @Age IS NULL) AND (Gender = @Gender OR @Gender IS NULL) End Testing the stored procedure 1. Execute spSearchEmployees - This command will return all the rows 2. Execute spSearchEmployees @Gender = 'Male' - Retruns only Male employees 3. Execute spSearchEmployees @Gender = 'Male', @Age = 29 - Retruns Male employees whose age is 29