Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
In JavaScript, developers used the prototype to inherit the function with another function in ES5. In the ES6, classes introduced in JavaScript can be used for inheritance as other programming language does. What are sub-classes and inheritance? As the subclass word represents, it is a child class of another class. We can use inheritance to create or derive a subclass from the superclass, and we can call the class to a superclass from which we derive the class and the sub-class to the derived class. The subclass contains all the properties and methods of the superclass, and we can access ... Read More
In TypeScript, classes are the template that defines the variables and methods. We can use class templates to create objects, which means the class is the reusable component in object-oriented programming, and we can reuse it by creating its object. We can use the ‘interface’ keyword to define the interfaces in TypeScript. The interface contains the class structure. The interface is similar to abstract classes we define in other programming languages, such as Java and C++. It contains only the declaration of variables with their type and method with its return type and parameter types. Classes define the interface's methods ... Read More
SQL, or Structured Query Language, is a programming language used for managing and manipulating relational databases. It is the standard language for relational database management systems, such as MySQL, Oracle, and Microsoft SQL Server. In this article, we will explore the characteristics of SQL and how they make it a powerful tool for working with databases. Introduction to SQL SQL is a declarative programming language, meaning that it is used to describe the desired outcome rather than the specific steps to achieve it. This makes it a powerful tool for working with databases because it allows users to focus on ... Read More
Since smartphones are so close to people, mobile app development has begun to influence the world. A combination of languages, primarily JavaScript, CSS, and HTML, is utilized to construct all types of coding. The development of mobile apps is now one of the most crucial areas of current technology developments. The process of creating a mobile app involves a variety of technologies and procedures. Coding, which uses a range of languages to accomplish the process, is one of the most crucial components. JavaScript is a computer language that developers like due to a wide range of advantages. Major developers always ... Read More
Introduction In the field of database systems, one of the most important concepts is that of recoverability. Recoverability refers to the ability of a system to restore its state in the event of failure. In order to ensure that a system is recoverable, it is necessary to understand the different types of schedules that can be used, and how they impact the recoverability of a system. In this article, we will explore the various types of schedules that can be used in database systems, and how they impact the recoverability of a system. We will also provide examples of each ... Read More
Introduction SQL Server is a powerful relational database management system that is widely used in various industries. One of the key features of SQL Server is its ability to enforce constraints on data to ensure data integrity and consistency. One such constraint is the check constraint, which allows users to specify a Boolean expression that must evaluate to true for any data that is inserted or updated in a specific column or table. In this article, we will discuss the concept of check constraints in SQL Server, how to create and implement them, and real-world examples of their use. What ... Read More
Introduction A checkpoint in a database management system (DBMS) is a process that saves the current state of the database to disk. This allows for faster recovery in the event of a system failure or crash. In this article, we will explore the concept of checkpoints in DBMS, including how they work, the different types of checkpoints, and their real-world applications. What is a Checkpoint? A checkpoint is a process that saves the current state of the database to disk. This includes all transactions that have been committed, as well as any changes that have been made to the database ... Read More
In the contemporary world, JavaScript is among the most widely used programming languages. Although it has certain additional use cases, web development is where people use it frequently, particularly when creating interactive front-end features. The top programming languages to learn, without a doubt, include JavaScript. If you want to work in any web development field, you must understand JavaScript. Sadly, learning a new programming language may be challenging, especially if you don't have a lot of prior expertise. Getting your head around the fundamentals can be contesting because coding concepts are challenging. Get Back to the Basics Although you may ... Read More
JavaScript is a popular programming language that is widely used for building web applications. It is a powerful and flexible language that can be used to create a wide variety of applications, from simple scripts to complex programs. Some common practices for writing JavaScript code − Name things by their name. It is easy because they are short and easy to read. Avoid using global variables. These are general variables in a program. It is tough to understand what is happening in the code. It also leads to problems when the code is changed. Coding style is significant so that ... Read More
Introduction In the field of database management systems, concurrency control is an important aspect of maintaining the consistency of data. One of the most widely used methods for ensuring consistency is serializability, which is a concept that characterizes schedules based on their ability to produce the same results as if the transactions were executed one at a time in some order. In this article, we will explore the concept of serializability in scheduling and how it can be used to ensure consistency in a concurrent system. What is Serializability? Serializability is a concept that is used to ensure that the ... Read More