Category: Node.js Database Integration

✅ Node.js MongoDB Join (Using $lookup) MongoDB does not support SQL-style joins, but it has a powerful aggregation operator called $lookup that allows joining two collections. ⭐ Example Collections customers collection:

orders collection:...

Here is a clean and complete guide for Node.js MongoDB Limit. ✅ Node.js MongoDB Limit The limit() method is used to control how many documents MongoDB returns.It is often used with: find() sort() skip()...

Here is a complete, easy, and practical guide for Node.js MongoDB Update operations. ✅ Node.js MongoDB Update MongoDB provides two main update methods: Method Description updateOne() Updates the first matching document updateMany() Updates all...

✅ Node.js MongoDB Drop Dropping means permanently deleting a database or collection. MongoDB provides two drop options: Drop a Collection Drop a Database ⭐ 1. Drop a Collection This deletes the entire collection and...

Here is a simple, clear, and complete guide for Node.js MongoDB Delete operations. ✅ Node.js MongoDB Delete Documents MongoDB provides two main delete methods: Method Description deleteOne() Deletes the first matching document deleteMany() Deletes...

✅ Node.js MongoDB Sort Sorting in MongoDB is done using the .sort() method. It works with: 1 → Ascending (A → Z / Small → Large) -1 → Descending (Z → A / Large...

Here is a clean, simple, and complete guide for Node.js MongoDB Query — also known as MongoDB Find with Conditions. ✅ Node.js MongoDB Query (Find With Conditions) To “query” in MongoDB means using find()...

✅ Node.js MongoDB – Find Documents MongoDB provides methods to retrieve data from a collection: findOne() → returns one document find() → returns multiple documents (cursor) ⭐ 1. Find One Document – findOne() Example...

Here is a clear and simple guide for Node.js MongoDB Insert operations using the official MongoDB Node.js Driver. ✅ Node.js MongoDB – Insert Documents MongoDB allows you to insert one or multiple documents into...

🚀 Node.js MongoDB – Create Collection In MongoDB, collections are like tables in SQL. Collections are automatically created when you insert the first document. You can also explicitly create a collection if needed. We’ll...