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What are the differences between `localhost` and `127.0.0.1`?

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DSA (Data Structures and Algorithms) is a fundamental concept in computer science that focuses on efficiently storing, organizing and processing data. Data structures like arrays, linked lists, stacks and trees manage data, while algorithms provide step-by-step solutions to problems. Mastering DSA is essential for writing optimized, scalable and high-performance code.

In databases, a query is a request to retrieve, insert, update or delete data. Written in SQL (Structured Query Language), queries can be simple, like fetching all rows from a table, or complex, involving joins, conditions and aggregations. They are essential for interacting with and managing database information efficiently.

Loop are a type of control flow structure in programming in which a series of statements may be executed repeatedly until some condition is met.

git branch is a command used to manage branches

Interview Experience

An interview experience is a detailed account of the interview process for a specific role, covering rounds, questions asked, difficulty level, preparation tips and personal insights to help future candidates understand what to expect and how to prepare effectively.

A structured conversation where one participant asks questions and the other provides answers of those questions.

PostgreSQL is a free, open source relational database management system. It was initially developed as a successor of the Ingres database

C# is a programming language.

A database is an organized collection of data. It is the collection of schemas, tables, queries, reports, views, and other objects. The data are typically organized to model aspects of reality in a way that supports processes requiring information. Use this tag if you have questions about designing a database.

Popular Articles

Primary Key in SQL

How to create Primary Key. Creating Primary Key syntax. A Primary Key is a database constraint that ensures uniqueness records in the table. Primary Key guarantees no two rows can have the same value in the primary key column(s). The Primary Key not only ensures uniqueness but also improves data access speed and is used to establish relationships between tables.

Mastering the Singleton Design Pattern in C#

Mastering the Singleton Design Pattern in C#, Singleton Design Pattern in Depth: Structure, Use Cases and Best Practices, in depth design pattern, LLD , low level design

Length of the Longest Substring Without Repeating Characters

Length of the Longest Substring Without Repeating Characters | Given a string str find the length of the longest substring without repeating characters | find the length of the longest substring without repeating characters in a given string |

Rotate an array of n elements to the right by k steps

Rotate an array of n elements to the right by k steps | right rotate the elements of an array | array rotate | rotate array by k step

MySQL installation in Docker

install mysql by docker. docker mysql server installation. MySQL is one of the most popular open-source relational database management systems. Docker container is a great way to manage and deploy databases in a portable and isolated environment. In this article, we will walk through the steps by step to install and run MySQL in Docker.

Mastering the Template Design Pattern in C#

Mastering the Template Design Pattern in C#, Template Design Pattern in Depth: Structure, Use Cases and Best Practices

List Handling in Java vs C# vs C++ – A Deep Comparison

List Handling in Java vs C# vs C++ A Deep Comparison, This comparison provides a full view java , c# and c++ List like data structures

How to Install and Run Docker on Amazon EC2 by yum

how to install docker on amazon ec2 instance. docker installation command on linux machine, docker commands, Commonly Used Docker Commands on EC2

Most Popular Tools

Explore our top online tools including a blank page for notes, a QR code generator, word counter and collaborative editor. These free, easy-to-use utilities help you write, analyze, share and organize content faster. Perfect for developers, creators and students to streamline everyday digital tasks efficiently.

Blank Page

Create a blank canvas for your ideas, notes or sketches. Use this tool for rough work and jotting down your thoughts

QR Code Generator

A QR Code Generator is a tool that instantly converts text, URLs or other data into a scannable QR code. Users can create custom QR codes for websites, contact info or messages. It's commonly used for quick access, sharing and printing without needing a backend or complex setup.

Word Counter

Perform various string operations like counting characters, words or letters.

Collaborative Editor

Collab Editor is a powerful, free-to-use online platform that lets you collaborate in real-time. Whether you re working on documents, brainstorming idea, or discussing projects etc