Feb 12 · 9 min read · 🗂️ Complete Folder Structure todo-app/ │ ├── server.js ├── package.json ├── .env │ ├── config/ │ └── db.js │ ├── models/ │ ├── User.js │ ├── Todo.js │ └── Comment.js │ ├── controllers/ │ ├── userController.js │ └── todoController.js │ ├─...
Join discussionFeb 12 · 4 min read · 🔹 Why Do We Need Relationships in MongoDB? In real applications, data is connected. Real life example (Railway system 🚆): One Train has many Coaches One User can have many Bookings One Booking belongs to one Train So the question is:👉 How do ...
Join discussionFeb 12 · 3 min read · 🔹 Why Do We Need populate()? In MongoDB, collections are separate.When we use referencing, we only store an ID, not full data. Example: { "passengerName": "Amit", "train": "65fae91c2b..." } This ID alone is not useful for UI. 👉 populate() help...
Join discussionDec 10, 2025 · 1 min read · Hey everyone, I made a big MongoDB mindmap because I was tired of bouncing between docs just to understand how everything connects. This one breaks down the whole system — collections, documents, indexing, aggregation, schema design, replication, sha...
Join discussionSep 8, 2025 · 4 min read · 1. What is MongoDB? MongoDB is a NoSQL database.That means it does not store data in rows and columns like MySQL or PostgreSQL. Instead, it stores data in documents (like JSON objects) inside collections. 👉 Think of it like this: Database = a big f...
Join discussionSep 8, 2025 · 5 min read · In the last lesson, we installed MongoDB and MongoDB Compass, and created our first database.Now, it’s time to learn the most important part of databases: CRUD operations. 👉 CRUD means: C → Create (Insert new data) R → Read (Get/Find data) U → Up...
Join discussionApr 23, 2025 · 3 min read · Mongo DB ? Mongodb manages the conversion of JSON-BSON and BSON-JSON automatically.It is case sensitive and not necessary to use semi-coolon “;” . What table is for RDBMS is collections for mongodb.One record in a collection is called as Document. Wh...
Join discussionJul 1, 2024 · 10 min read · Introduction🚀 MongoDB, Inc. was founded by 10gen, the company that originally developed it. Eliot Horowitz and Dwight Merriman launched the company in 2007. In this blog, you will be able to download MongoDB components and study and use them in your...
Join discussion
Jun 26, 2024 · 3 min read · Hi folks, Here is the step-by-step procedure for the complete setup and installation of MongoDB in Ubuntu OS. If you're here to learn about MongoDB installation, chances are you're already familiar. Nonetheless, let's briefly explore MongoDB's featur...
Join discussion
Apr 24, 2024 · 10 min read · Introduction In this tutorial, we will create a simple RESTful API using Java, Spring Boot, MongoDB and Maven for a travel app. It will allow us to Create, Read, Update and Delete Trips. Prerequisites Java Development Kit (JDK) 8 or later, installed...
Join discussion