MongoDB Learning Roadmap: From Basics to Advanced
1. Getting Started with MongoDB
Introduction to MongoDB: What is MongoDB and why use it? Difference between NoSQL and SQL databases.
Setup: Install MongoDB and Compass (GUI for MongoDB). Set up a local or cloud MongoDB instance using MongoDB Atlas.
2. Core Concepts
Databases and Collections: Understand databases, collections, and documents.
CRUD Operations: Perform Create, Read, Update, and Delete operations using MongoDB shell or Compass.
BSON: Understand how MongoDB stores data in BSON format.
3. Querying Data
Basic Queries: Filter documents using find(). Use operators like $eq, $ne, $lt, $gt, $in, and $nin.
Advanced Queries: Use $and, $or, $not, and $nor. Query arrays and embedded documents.
Projections: Return specific fields using projections in queries.
4. Indexes
Purpose of Indexes: Speed up queries and optimize performance.
Create and Manage Indexes: Single field, compound, and text indexes.
Understand Index Impact: Use the explain() method to analyze query performance.
5. Aggregation Framework
Introduction: Understand the pipeline approach in aggregation.
Basic Stages: $match, $group, $sort, $limit, $project, and $lookup.
Advanced Stages: $unwind, $addFields, $replaceRoot, and $facet.
6. Data Modeling
Schema Design: Differences between embedding and referencing documents.
Relationships: One-to-One, One-to-Many, and Many-to-Many relationships.
Best Practices: Design schemas for scalability and performance.
7. Transactions
Multi-Document Transactions: Implement ACID transactions in MongoDB.
Use Cases: When to use transactions in NoSQL.
8. Working with MongoDB in Applications
MongoDB Drivers: Integrate MongoDB with programming languages like Node.js (Mongoose), Python (PyMongo), and Java.
CRUD Operations in Code: Perform database operations using drivers.
9. Administration and Optimization
Backup and Restore: Use mongodump and mongorestore for backups.
Performance Optimization: Optimize queries, manage indexes, and shard data for horizontal scaling.
Security: Configure authentication, roles, and encryption for secure access.
10. Build Projects
Beginner: Create a basic CRUD app (e.g., contact manager).
Intermediate: Build an inventory management system or blog backend.
Advanced: Design a scalable social media backend with user posts, comments, and likes.
Deploy on MongoDB Atlas or integrate with cloud platforms.
ENJOY LEARNING 👍👍
