MongoDB

AGENDA

• Introduction

• NoSQL

• MongoDB

• Concepts/Fundamentals

• Working with MongoDB (hands-on)

WHO AM I?

• Software Developer/Architect/Consultant for 15 years.

• Working in the .NET stack (mainly in the web space) since 2001.

• Started getting interested in MongoDB about 2-3 years ago.

David Green

@davidjeetabout.me/davidgreen24

WHERE DOES THIS TALK FIT IN?

CLASSIC N-TIER ARCHITECTURE

User Interface (UI)

Business Layer/Service

Data LayerYou Are Here

AGENDA

• Introduction

• NoSQL

• MongoDB

• Concepts/Fundamentals

• Working with MongoDB (hands-on)

WHAT IS NOSQL?

All Databases

Relational Databases (Oracle, mySQL,

Postgres, SQL Server)

NoSQL(MongoDB, Redis, Neo4J, Cassandra,

Hbase)

No schema enforcedOpen source

Designed to run on large clusters

Not using the relational model

Model not using the SQL

language)

What is NoSQL?Martin Fowler: Some characteristics are common amongst these databases, but none are definitional.

NoSQL Database Families*

• HBase• Cassandra• Hypertable

Columnar • Redis

• Riak• Memcached• Voldemort

Key-value

• MongoDB• CouchDB• RavenDB

Document • Neo4J

• GiraffeDB• InfiniteGraph

Graph

* “Seven Databases in Seven Weeks”, Eric Redmond and Jim R. Wilson

memCachedX

SQL ServerX

MongoDB

X

WHO USES THIS NOSQL STUFF?

AGENDA

• Introduction

• NoSQL

• MongoDB

• Concepts/Fundamentals

• Working with MongoDB (hands-on)

WHAT IS MONGODB?

WHAT IS MONGODB?

Open source NoSQL

database

Document-oriented

Stores JSON-like documents

(dynamic schemas)

Includes a strong query

language (Javascript)

Powerful, flexible

indexing (including

geospatial)

Sharding and replication

Cross-Platform (many drivers – e.g. C#, Java, Python, Ruby)

Why MongoDB?

1. Open Source - no licensing fees.

2. Relatively developer friendly and easy to ramp up.

3. Fast reads.

MongoDB Search Trends – Google

WHEN NOT TO USE MONGODB

• Relationships/Join

• Transactions

• Write Safety (High volume of writes/sec. scenarios)

When one or more of the following are insurmountable even after modeling:

AGENDA

• Introduction

• NoSQL

• MongoDB

• Concepts/Fundamentals

• Working with MongoDB (hands-on)

MONGODB FUNDAMENTALS

10GEN QUICK REFERENCE CARD

MONGODB - JSON & BSON

JSON Number String Boolean Array Object null

BSON = JSON + ObjectId DateTime Byte Arrays GeoSpatial

EXAMPLE BSON DOCUMENT{ "_id" : ObjectId("5218282429f4a04648f64870"), "Title": "What's new in MongoDB 2.4", "Content" : "MongoDB 2.4 represents hundreds of

improvements and features driven by user requests...",

"Author" : { "FirstName" : "David", "LastName" : "Green" }, "CreatedOn" : ISODate("2013-07-19T01:30:52Z"), "LastModifiedOn" : ISODate("2013-08-24T03:27:32Z"), "Comments" : [], "Tags" : [ ”Databases", ”Features", "NoSQL", "MongoDB" ]}

INSTALLING MONGO

MONGODB DATABASE INSTALL

Starting Up the Server

USING THE CONSOLE

AGENDA

• Introduction

• NoSQL

• MongoDB

• Concepts/Fundamentals

• Working with MongoDB (hands-on)

https://github.com/davidjeet/OpenDataDay/

THE END