Developing using MongoDB

Why NoSQL?

● Scalability ● Performance● Availability

Choices we have?

Database Objects

● Database● Collection● Document● Index

Map it!

MongoDB SQL Server

Database Database

Collections Tables

Document Row

What is the document here?{

_id : 1,name : “Sam Walton”,age : 74,company :

[“Walmart”,”Walton Five”]

}

In MongoDB we use JSON to represent our data. Document is more like a record in Relational Databases.

{_id : 1,name : “Sam Walton”,age : 74,company :

{ name : ”walmart”}

}

Data Type

ObjectID - 12bytesNumberStringBooleanDate/Timenull

Designing

Denormalizing is ok?

Foreign keys? NOThen How?

Is it same for all NoSQL databases?

DEMO

Indexing

Can I create Secondary indexes?

Lots of indexes ? NO?

Full text search ?

Security

● Schema Injection

● Authentication

● SSL?

● Encryption?

What else?

Write Concern

SlaveOk

journaling

Sharding

Q & A