The document provides information about MongoDB and its document model and schema flexibility. It shows an example document with embedded documents and arrays that can hold different data types. It discusses how MongoDB allows flexible schemas so documents in the same collection can have different fields. It also mentions replication sets, sharded clusters, MongoDB Atlas as a cloud database service, and includes steps for a MongoDB workshop to install, import sample data, set up replication and clustering, and do CRUD operations.

2. MongoDB Workshop
Sophia Conf 2018

4. 4
Document Model
{
first_name: ‘Paul’,
surname: ‘Miller’,
city: ‘London’,
location: {
type : ‘Point’,
coordinates : [45.123,47.232]
},
cars: [
{ model: ‘Bentley’,
year: 1973,
value: 100000, … },
{ model: ‘Rolls Royce’,
year: 1965,
value: 330000, … }
]
}
MongoDB
RDBMS

5. 5
Developer Agility - Documents
{
first_name: ‘Paul’,
surname: ‘Miller’,
ID: 125678,
city: ‘London’,
location: {
type : ‘Point’,
coordinates : [45.123,47.232]
},
Profession: [‘banking’, ‘finance’, ‘trader’],
cars: [
{ model: ‘Bentley’,
year: 1973,
value: 100000, … },
{ model: ‘Rolls Royce’,
year: 1965,
value: 330000, … }
]
}
Fields can contain an array
of sub-documents
Typed field values
Fields can contain
arrays
String
Number
Geo-Location
Fields

6. 6
Developer Agility – Flexible Schema
{
product_name: ‘Acme Paint’,
sku: "123-567-845",
color: [‘Red’, ‘Green’],
size_oz: [8, 32],
finish: [‘satin’, ‘eggshell’]
}
{
product_name: ‘T-shirt’,
sku : "123-589-234",
size: [‘S’, ‘M’, ‘L’, ‘XL’],
color: [‘Heather Gray’ … ],
material: ‘100% cotton’,
wash: ‘cold’,
dry: ‘tumble dry low’
}
{
product_name: ‘Mountain Bike’,
sku : "143-534-678",
brake_style: ‘mechanical disc’,
color: ‘grey’,
frame_material: ‘aluminum’,
no_speeds: 21,
package_height: ‘7.5x32.9x55’,
weight_lbs: 44.05,
suspension_type: ‘dual’,
wheel_size_in: 26
}

7. 7
Developer Agility – Use Your Favourites
Page 7
Morphia
MEAN Stack

8. 8
Replica Set
SecondarySecondary
Primary

9. 9
Sharded Cluster
Application
mongos mongos mongos
Driver
Config Server

11. 11
Atlas - Database as a Service
Self-service, elastic,
and automated
Secure by defaultGlobal and highly
available
Continuous
backups
Real-time monitoring and
optimization
Cloud agnostic

12. 12
Demo!

13. 13
Workshop
● Download & install MongoDB 4.0.0
export PATH="$PATH:/home/polux/Softwares/mongodb-linux-x86_64-enterprise-debian92-4.0.0/bin"
● Start a simple node
mkdir data
mongod --dbpath data
● Import simple dataset
https://github.com/MaBeuLux88/mongodb-json-files
mongoimport --drop -d test -c grades grades.json
● Scripts to start a ReplicaSet and a Sharded Cluster
https://github.com/MaBeuLux88/MongoDB-Training
● Free ReplicaSet in MongoDB Atlas
https://cloud.mongodb.com
● Download, install and test MongoDB Compass
● Make a simple Hello World with the driver of your choice with MongoDB Atlas or localhost node
● Make some CRUD operations and discover the driver API
● Create a small program to listen a change streams
● Check you can listen the CRUD operations with your change stream

14. 14
Conclusion
@MBeugnet MaBeuLux88

15. 15
Community is awesome!
https://mongo-db.slack.com
https://mongodb.influitive.com/

16. 16
MongoDB Events
MongoDB .local Paris
TOO
LATE