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Working with SQL databases forces you to come across primarily the clustered and the unclustered indexes. These are handy features that if used wisely can greatly enhance the speed of execution of the listed queries. But it can be hard to grasp their fundamentals, especially if you want to picture it in your head. In this blog post, I explain what clustered and unclustered indexes are, why they are of importance and most important how they can be explained without the necessity of explaining all the details. What is a Clustered Index? A clustered index specifies how the data stored in a table is sorted out in relation to the other fields in that table. Let’s consider, as an example, a to-do list that you create and find that it has automatically been arranged in a certain order. When you apply a clustered index on a unique key The control column such as SQL Server will automatically add rows of that table in accordance with the control column. Since the book-placement is done acc

In modern software development, design patterns are important in structuring code and making it easy to maintain. One such design pattern is the Chain of Responsibility Design Pattern. Whether you're working with C++ or any other object-oriented language, the Chain of Responsibility (CoR) pattern offers a way to handle requests through a series of handlers, each capable of processing or passing the request along. In this article, we'll explore how to create a chain in the Chain of Responsibility Design Pattern, particularly focusing on C++ programming. We'll walk through an implementation, discuss how it works, and explain why it’s useful when flexible request-handling logic is needed. You might also want to read about Decorator Design Pattern . Designing Design Patterns with C#   What is the Chain of Responsibility Design Pattern? The Chain of Responsibility Design Pattern is a behavioral design pattern that allows an object to pass a request through a chain of poten