MongoDB
MongoDB is a NoSQL document database that stores data in JSON-like BSON format. It is schema-less, supports horizontal scaling and enables fast queries with indexing. Features include sharding, replication and aggregation framework. Ideal for big data and real-time applications, MongoDB is widely used in modern web and cloud-based applications.
MongoDB Atlas Search: $searchBefore returns the same results as $searchAfter
I’m implementing pagination in MongoDB Atlas Search using the $search stage with searchAfter and searchBefore tokens.
Popular Topics
PostgreSQLLoopDSAMathInterview PreparationMySQLLanguage-ConceptsSystem DesignDatabaseInterview
PostgreSQL is a free, open source relational database management system. It was initially developed as a successor of the Ingres database
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.
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.
math tag that is used for mathematical operations Math is the study of numbers, shapes, patterns and logical relationships. It provides tools for problem-solving, measurement and analysis across science, technology, engineering and daily life. Math includes fields like algebra, geometry, calculus and statistics. It builds critical thinking skills and forms the foundation for computing, algorithms, data science and modern technological advancements.
Interview Preparation is the process of getting ready to perform confidently and effectively in a job interview. It includes researching the company, understanding the job role, practicing common interview questions, improving communication skills and reviewing technical or domain knowledge. Proper interview preparation increases confidence, reduces anxiety, and improves your chances of securing the job.
MySQL is an open-source relational database management system widely used for storing and managing structured data. It supports SQL for querying, updating and controlling data efficiently. Known for reliability, speed and scalability, MySQL powers web applications, enterprise systems and cloud platforms. It is commonly used with PHP, Java, Python and modern application stacks like LAMP and MERN.
This tag is used to understand a basic part of the language.
System design is the process of defining the architecture, components, modules, interfaces and data flow of a system to meet specific requirements. It focuses on creating scalable, efficient and maintainable solutions, covering both high-level design (HLD) and low-level design (LLD). Essential for building reliable, high-performance software systems.
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.
A structured conversation where one participant asks questions and the other provides answers of those questions.
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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.
Amazon Transaction Logs (example question), Amazon Transaction Logs Interview question
Learn how to create a primary key in SQL using syntax and examples. Ensure unique records, improve query performance and build table relationships.
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subarray with the largest sum and return its sum | The Efficient Way to Find Maximum Subarray Sum
Top 50 SQL Interview Questions and Answers (Beginner to Intermediate). Top SQL Interview Questions for fresher. Frequently asked SQL interview questions with answers
You are given two integer arrays arr1 and arr2, sorted in accending order, and two integers m and n, representing the number of elements in arr1 and arr2 respectively. Merge arr1 and arr2 into a single array sorted in accending order.
Maximum Product Subarray, Find Maximum Product Subarray in an Array, Given an integer array arr, find a subarray that has the largest product,
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