MongoDB – Getting Started

You Need:

• Linux or Mac machine
• Docker installed & running
• Terminal Application
• Or simply use the Google Cloud Shell (free!)

1 – Run MongoDB with Interactive Shell

git clone https://github.com/u1i/mongodb-getting-started

cd mongodb-getting-started

./run-mongo.sh

2 – Databases

Which DB am I using?

db

test

Which databases exist?

show databases

admin 0.000GB
config 0.000GB
local 0.000GB

Switch to (or create) DB

use class01

switched to db class01

3 – Create a Collection & Add Data

db.students.insert({"name": "Kelly", "email": "[email protected]"})

db.students.insert({"name": "Jason", "email": "[email protected]"})

db.students.insert({"name": "Jason", "email": "[email protected]"}, "activities": ["basketball", "table tennis"])

4 – Query Data

List All Collections

db.getCollectionNames()

Get All Data in a Collection

db.students.find()

{ "_id" : ObjectId("5f5c85f67eaad73223e85fc3"), "name" : "Kelly", "email" : "[email protected]" }
{ "_id" : ObjectId("5f5c85f87eaad73223e85fc4"), "name" : "Jason", "email" : "[email protected]" }

db.students.find().pretty()

Find All Students with the name 'Jason'

db.students.find({"name": "Jason"})

{ "_id" : ObjectId("5f5c85f87eaad73223e85fc4"), "name" : "Jason", "email" : "[email protected]" }

5 – Deleting Stuff

Delete a Document

db.students.remove({"name": "Jason"})

Delete a Collection

db.students.remove({})