Learn how to safely delete documents from your MongoDB collection. This tutorial covers the two essential commands for deleting data: deleteOne and deleteMany.

What you will learn:

db.collection.deleteOne(): How to delete the first document that matches your query filter. This is the safest way to remove a single, specific entry.

db.collection.deleteMany(): How to delete all documents that match your query filter. This is powerful but be careful!

How to Delete All Documents: We'll show you how to use deleteMany({}) with an empty filter to clear an entire collection (use with caution!).

Example deleteOne: db.users.deleteOne({ name: "Alice" })

Example deleteMany (e.g., remove all inactive users): db.users.deleteMany({ status: "inactive" })

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