This is the most important operation in MongoDB: reading your data! This tutorial shows you how to use the two main commands for reading: find() and findOne().

What you will learn:

db.collection.find(): How to use this command to find all documents that match your query. It returns a cursor, which is a pointer to the list of results.

db.collection.findOne(): How to use this command to find only the first document that matches your query. It returns a single document object, not a cursor.

How to Query: We'll show you how to write a query filter to find specific data (e.g., db.users.find({ age: 30 })).

Find All: How to use an empty query {} to get every document in a collection.

Example find(): db.products.find({ category: "Electronics" })

Example findOne(): db.users.findOne({ username: "alice" })

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