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Articles tagged with #mongodb
By the end of Day 31, students will clearly understand: What MySQL is Why we use MySQL in real projects How to install MySQL Community Server (latest) What is MySQL Workbench and why we need it How MySQL fits with Node.js projects 👉 No coding...
🎯 Why This Comparison Is Important? As a Node.js developer, one of the most important decisions is choosing the right database. Two very popular databases are: MySQL (SQL / Relational Database) MongoDB (NoSQL / Document Database) Both are powerf...
🗂️ 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 │ ├─...
🔹 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...
🔹 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 ...
📌 Features Covered Create railway bookings View bookings in browser Filter by source & destination Sort by journey date Pagination (page-wise data) Strong backend validations Proper frontend ↔ backend connectivity 📁 Folder Structure (IMPO...
