How To Connect Express.js with MongoDB |SQL vs NoSQL |MongoDB Model Creation With Mongoose in Telugu

Hi Friends 👋
Welcome to Day-23 of our React JS Full Stack Web Development in Telugu series.
Today, we will understand MongoDB, how to connect it with Express.js, learn the basic difference between SQL and NoSQL, and how to create models both manually in MongoDB Compass and using code in Express.js.

📌 Topics Covered in Day-23:

1️⃣ What is MongoDB?
MongoDB is a NoSQL database that stores data in the form of documents (key-value pairs) instead of traditional tables.

2️⃣ How to Install MongoDB Compass?👇
MongoDB Compass is a GUI tool for MongoDB. Install it from the official website and use it to visually manage your MongoDB databases and collections.

3️⃣ How to Connect Express.js to MongoDB👇
Use the `mongoose` library in your Express.js project to connect with MongoDB using `mongoose.connect()` and a MongoDB URI.

4️⃣ Difference Between SQL and NoSQL:👇
👉SQL: Structured data → Tables (Rows & Columns)
👉NoSQL: Unstructured data → Documents (Key\:Value pairs)
In NoSQL, we use collections instead of tables.

5️⃣ How to Create a Model in MongoDB (Compass + Express):👇
✍️In MongoDB Compass: Create a database → collection → manually insert document.
✍️ In Express.js: Create a Mongoose schema → model → use `.create()` or `.save()` to store data.
🔮Next Day (Day-24) Topics:👇👇👇
1️⃣ What is POST Method
2️⃣ How to Post User Data from React using Fetch and Axios
3️⃣ Why Use Axios Instead of Fetch
4️⃣ How to Handle POST Requests in Express.js
5️⃣ How to Store User Data (Signup) in MongoDB
6️⃣ How to Check if User Exists (Login Logic)

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