kartikgupta618@gmail.com Duplicate records in a SQL Server table can cause performance issues, inaccurate reports, and data integrity problems. Whether the duplicates were introduced due to application bugs, ETL processes, or human error, cleaning them up is essential for maintaining a healthy database. In this guide, we will explore multiple methods to identify and delete duplicate records … Read more
Introduction The SQL INSERT command is a fundamental tool for adding data to relational databases. It’s versatility allows for various applications, from simple data entry to complex data migrations. However, like any powerful tool, it comes with its own set of advantages and challenges. In this article, we will deep drive into seven key pros … Read more
Introduction: Why the SQL UPDATE Command Is Both Powerful and Risky The UPDATE command in SQL is one of the most commonly used operations in database management systems. Whether you’re fixing a typo in a customer’s name, adjusting a price, or correcting an account balance the UPDATE command gets the job done. But like any … Read more
Introductions Whether you are just starting your SQL journey or refining your data skills, understanding the SELECT statement is essential. It’s the most frequently used SQL command, and the first step towards mastering data manipulation in any relational database. In this blog post, we will explore what the SELECT statement is, why it is important, … Read more
Are you new to SQL and wondering what CRUD Operations really mean? If you have ever interacted with a banking application maybe checking your balance, transferring money, or opening a new account you have unknowingly performed CRUD Operations. These four simple actions Create, Read, Update, and Delete form the backbone of every database driven system, … Read more
Normalization Normalization is the process of organizing data in a relational database in such a way that it reduces data redundancy and ensures data integrity. This is typically done by dividing a large table into smaller, related tables and using foreign keys to link them. There are several “normal forms” (NF), each with its own … Read more
Introduction SQL Interview Questions are essential for anyone preparing to enter the data and software industry. Whether you’re a beginner or an experienced developer, understanding how to confidently answer SQL-based questions can significantly boost your chances in technical interviews. In this guide, we cover the most commonly asked SQL Interview Questions with clear explanations, practical … Read more
When working with data whether it’s customer records, sales figures, or business intelligence you need a reliable system to manage it all. That’s where SQL Server comes in. Developed by Microsoft, It is a widely used relational database management system (RDBMS) known for its powerful features, enterprise-level support, and integration with the Microsoft ecosystem. But … Read more
Introducation In today’s data-driven world, managing information efficiently is crucial for every organization. Whether it’s a bank, hospital, online store, or social media platform, they all rely on databases to store, manage, and retrieve data effectively. One of the most popular and widely used database systems is RDBMS — Relational Database Management System. But what … Read more
NDBMS Stand for Network Database Mangement System It is a 3rd Model of DBMS which was introduced by IBM in 1969.In this Model is also stored the data in the form of three structure along with an integrated to the network environments. Advantages: Disadvantages (Drawbacks)