MongoDb Cheat Sheet 2023

All you need to know about MongoDB.

MongoDB Cheat Sheet

• Create and account or Login into https://www.mongodb.com/pricing#mdb-modal-shared.
• Best for small/Learning/Test projects.
• Choose your best cloud service provider;
  • Aws.
  • GCP(Google Cloud Platform).
  • Azure.
• Select Location (eastus2).
• Create Cluster.

5 simple Steps to Getting Started.

• Create the Cluster.
• Create the Database User.
• Add a IP address of your Computer(Whitelist an IP) / Make your Cluster accessible from anywhere.
• Load Sample data or create the data Manually.
• Connect to your Mongo cluster.

Authorization / Authentication.

• Username and password or Certificate.

Checking Mongo Version: .

• db.version()

Connect to MongoDB: .

• mongo

Show all databases: .

• show dbs

Use a database: .

• use <db_name>

Show all collections in a database: .

• show collections

Create a collection: .

• db.createCollection("collection_name")

Insert a document into a collection: .

• db.collection_name.insert({field1: "value1", field2: "value2"})

Find all documents in a collection: .

• db.collection_name.find()

Find documents with a specific condition: .

• db.collection_name.find({field: "value"})

Update a document in a collection: .

• db.collection_name.update({field1: "value1"}, {$set: {field2: "new_value"}})

Delete a document in a collection: .

• db.collection_name.remove({field: "value"})

Insert Documents

Insert a single document: .

• db.collection_name.insertOne({field1: "value1", field2: "value2"})

Insert multiple documents in a collection: .

• db.collection_name.insertMany([ {field1: "value1", field2: "value2"}, {field1: "value3", field2: "value4"}, {field1: "value5", field2: "value6"} ])

Find All Documents: .

• db.collection_name.find()

Sorting Documents

Sorting Documents in Ascending Order: .

• db.collection_name.find().sort({field1: 1})

Sorting Documents in Descending Order: .

• db.collection_name.find().sort({field1: -1})