What is MongoDB?

MongoDB is a document database designed for ease of application development and scaling.

Run MongoDB with MongoDB Atlas fully managed in the cloud.

Important

MongoDB 6.2 is a rapid release and is only supported for MongoDB Atlas. MongoDB 6.2 is not supported for use on-premises. For more information, see MongoDB Versioning.

To install the latest MongoDB version supported for on-premises use, MongoDB 6.0, see the MongoDB 6.0 installation instructions.

What You Can Do

Work with your data in MongoDB

Model your data

Design your data schema to support frequent access patterns. You can update or enforce your schema at any point.

To learn more, see Data Modeling Introduction

Connect to MongoDB

Import data from CSV or JSON files into your MongoDB database.

To learn more, see MongoDB Shell (mongosh)

Insert, query, update, or delete documents

Use the MongoDB Query API to perform CRUD operations on your data - with or without transactions.

To learn more, see MongoDB CRUD Operations

➜ mongosh --port 27017
Current Mongosh Log ID:  123a4bc5d67891011ef1213g
Connecting to:    mongodb://127.0.0.1:27017/
For mongosh info see: https://www.mongodb.com/zh-cn/docs/mongodb-shell/
test> db.messages.insertMany([
         {
            message: "Hello World!",
            author: "MongoDB",
            comments: [],
            _id: 1
         }
      ])
{ acknowledged: true, insertedIds: { '0': 1 } }
test> db.messages.findOne({ _id: 1 })
{ _id: 1, message: 'Hello World!', author: 'MongoDB', comments: [] }

Import your data

Import data from a CSV or JSON file with mongoimport.

To learn more, see mongoimport

Aggregate your data

Use aggregation pipelines to process your data in multiple stages and return the computed results.

To learn more, see Aggregation Operations.

test> db.orders.insertMany([
   { "item" : "almonds", "price" : 12, "quantity" : 2 },
   { "item" : "pecans", "price" : 20, "quantity" : 1 },
])
test> db.inventory.insertMany([
   { "sku" : "almonds", "description": "product 1", "instock" : 120 },
   { "sku" : "cashews", "description": "product 3", "instock" : 60 },
   { "sku" : "pecans", "description": "product 4", "instock" : 70 }
])
test> db.orders.aggregate([
   { $match: { price: { $lt: 15 } } },
   { $lookup: {
         from: "inventory",
         localField: "item",
         foreignField: "sku",
         as: "inventory_docs"
   } },
   { $sort: { price: 1 } },
])

Authenticate a client

Verify the identity of a user, replica set member, or sharded cluster member with authentication.

To learn more, see Authentication

Control access to your database

Enable Role-Based Access Controls to manage user privileges on your entire database cluster or individual collections.

To learn more, see Role-Based Access Controls

Encrypt your most sensitive data

Client-Side Field Level Encryption protects data while it is in-use by the database. Fields are encrypted before they leave your application, protecting them over the network, in memory and at rest.

To learn more, see Client-Side Field Level Encryption.