SQL Constraints are set of rules applied to a SQL tables to validate data. The purpose…
Author: Mathew Markose
What are the main differences between DML vs DDL?
The main difference between DML vs DDL is – one for managing data in database and…
Joins in SQL
SQL JOINS Joins in SQL are used to get related data from different tables. SQL joins…
Interface in OOPS
Introduction Interface is introduced to achieve multiple inheritance. Multiple classes cannot be inherited in C#, because…
Abstract classes in OOPS
Abstract Classes Abstract classes are defined with the keyword ‘abstract’. They are used in design level.…
Access Modifiers in C#
Access Modifiers / Access Specifiers are keywords used in object oriented programming to restrict access to…
What is Encapsulation in OOPS?
Encapsulation is the process of wrapping method and attributes into single unit and hiding unnecessary data…
What is Abstraction in OOPS?
The meaning of abstract is existing in thoughts or as idea but not having a physical…
What is Polymorphism in OOPS?
Polymorphism is a Greek word which means many-forms. That means look same but act different. There…
What is Inheritance in OOPS?
Inheritance Inheritance is one of the main feature of OOPS. It helps to reuse the code…