Learn how MongoDB stores, finds, changes, and removes documents in a collection.
CRUD stands for Create, Read, Update, and Delete — the four basic operations you perform on data. In MongoDB, data is stored as flexible JSON-like documents inside collections, and you use queries to find and modify those documents.
MongoDB gives you methods such as insertOne, find, updateOne, and deleteOne, along with many variations for handling multiple documents. Understanding filters, update operators, projections, and returned results is the foundation for working with MongoDB.
What you'll walk away knowing