Subqueries and joins are two important concepts in SQL, the standard programming language for managing and manipulating databases. In this blog, we will explore what subqueries and joins are, how they differ, and when to use each one in your SQL queries. What are Subqueries? A subquery is a query within a query. It is…
Welcome to my article on software engineering! My name is Adam Lee and I am a Software Engineer. In this article, I hope to share my knowledge and experience with you, covering a wide range of topics from software engineering principles to specific technologies such as C#, Ruby on Rails, and SQL. I’ll be providing…
An interface in computer science is a mechanism for specifying a contract between different software components, without specifying the implementation details. It defines a set of methods and properties that a class implementing the interface must provide, but does not specify how those methods should be implemented. This allows for flexibility and reusability of code,…
A constructor is a special method that is automatically called when an object of a class is created. It is used to initialize the state of the object and perform any other setup that is required. The constructor has the same name as the class and does not have a return type. A class can…