Input nd output parameters
CREATE PROCEDURE [dbo].[GetPermission]
@userName varchar(50),
@permission int output
AS
BEGIN
select @permission = PERMISSION from USERS where UserName = @userName
END;Inheritance
C# | Inheritance Inheritance is an important pillar of OOP(Object Oriented Programming). It is the mechanism in C# by which one class is allowed to inherit the features(fields and methods) of another class. Important terminology: Super Class: The class whose features are inherited is known as super class(or a base class or a parent class). Sub Class: The class that inherits the other class is known as subclass(or a derived class, extended class, or child class). The subclass can add its own fields and methods in addition to the superclass fields and methods. Reusability: Inheritance supports the concept of “reusability”, i.e. when we want to create a new class and there is already a class that includes some of the code that we want, we can derive our new class from the existing class. By doing this, we are reusing the fields and methods of the existing class. The symbol used for inheritance is : . Syntax: class derived-class : base-class ...
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