MONGODB — Aggregation Pipeline

Overview

Learn Aggregation Pipeline in MONGODB with a clear explanation and a practical example.

What you'll learn

• What Aggregation Pipeline means
• When to use it
• How it works in practice
• A copy‑paste example

Syntax

db.collection.find({ ... })

Example

db.users.find({ country: "Iraq" }).limit(10)

Notes

• Test the example in the Playground.
• Start simple, then expand.

Mistakes

• Mixing up the syntax.
• Not testing the output.