MongoDB Introduction, Installation & Execution

iFour Consultancy
MongoDB
Introduction, Installation & Execution
https://www.ifourtechnolab.com

 Scalable High-Performance Open-source, Document-orientated database.
 Built for Speed
 Rich Document based queries for Easy readability.
 Full Index Support for High Performance.
 Replication and Failover for High Availability.
 Auto Sharding for Easy Scalability.
 Map / Reduce for Aggregation.
What is MongoDB ?

 SQL was invented in the 70’s to store data.
 MongoDB stores documents (or) objects.
 Now-a-days, everyone works with objects (Python/Ruby/Java/etc.)
 And we need Databases to persist our objects. Then why not store objects
directly ?
 Embedded documents and arrays reduce need for joins. No Joins and No-multi
document transactions.
Why use MongoDB?

 RDBMS replacement for Web Applications.
 Semi-structured Content Management.
 Real-time Analytics & High-Speed Logging.
 Caching and High Scalability
 Web 2.0, Media, SAAS, Gaming
 HealthCare, Finance, Telecom, Government
What is MongoDB great for?

 Highly Transactional Applications.
 Problems requiring SQL.
Not great for?
Some Companies using MongoDB in Production

Advantages of MongoDB
Schema less : Number of fields, content and size of the
document can be differ from one document to another.
No complex joins
Data is stored as JSON style
Index on any attribute
Replication and High availability

7
MongoDB Terminologies for RDBMS concepts
RDBMS MongoDB
Database Database
Table, View Collection
Row Document (JSON, BSON)
Column Field
Index Index
Join Embedded Document
Foreign Key Reference
Partition Shard

JSON
“JavaScript Object Notation”
Easy for humans to write/read, easy for computers to
parse/generate
Objects can be nested
Built on
• name/value pairs
• Ordered list of values
http://json.org/

BSON
“Binary JSON”
Binary-encoded serialization of JSON-like docs
Embedded structure reduces need for joins
Goals
• Lightweight
• Traversable
• Efficient (decoding and encoding)
http://bsonspec.org/

BSON Example
{
"_id" : "37010"
“City" : “Nashik",
“Pin" : 423201,
"state" : “MH",
“Postman” : {
name: “Ramesh Jadhav”
address: “Panchavati”
}
}

Integer
Boolean
Double
String
ArraysNull
Object ID
Binary data
Date
Data Types of MongoDB

 String : This is most commonly used datatype to store the data. String
in mongodb must be UTF-8 valid.
 Integer : This type is used to store a numerical value. Integer can be 32
bit or 64 bit depending upon your server.
 Boolean : This type is used to store a boolean (true/ false) value.
 Double : This type is used to store floating point values.
 Min/ Max keys : This type is used to compare a value against the
lowest and highest BSON elements.
 Arrays : This type is used to store arrays or list or multiple values into
one key.
 Timestamp : ctimestamp. This can be handy for recording when a
document has been modified or added.
 Object : This datatype is used for embedded documents.
Data Types

 Null : This type is used to store a Null value.
 Symbol : This datatype is used identically to a string however,
it's generally reserved for languages that use a specific symbol
type.
 Date : This datatype is used to store the current date or time in
UNIX time format. You can specify your own date time by
creating object of Date and passing day, month, year into it.
 Object ID : This datatype is used to store the document’s ID.
 Binary data : This datatype is used to store binay data.
 Code : This datatype is used to store javascript code into
document.
 Regular expression : This datatype is used to store regular
expression
Data Types

Installation in Windows
 Download MongoDB from Website:
https://www.mongodb.org/downloads
 Select option
Windows
 Download and Run

Create one folder (eg SNJB) in bin folder of MongoDB
Goto command prompt
Goto bin dir of MongoDB and write following command
mongod --storageEngine=mmapv1 --dbpath SNJB
(Server will started and listen at 27017 port)
Open another command prompt and give command mongo
(Client will be started)
Starting MongoDB in Windows

Installation in Ubuntu
 Download MongoDB from Website:
https://www.mongodb.org/downloads
 Select option
Linux
 Download and Run

Starting MongoDB in Ubuntu
Create a folder in bin directory of mongodb
Open terminal
Goto mongodb bin folder (cd mongo….)
Type ./mongod (Server is started)
Open another terminal
Goto mongodb bin folder (cd mongo….)
Type ./mongo (client will be started)
Run all commands on client terminal

Outline
Difference Between SQL and NoSQL
Study of Open Source NOSQL Database
MongoDB Installation,
Basic CRUD operations,
Execution

Database
collection
Basic Database Operations

• switched to database provided with
ciommand
use <database
name>
• To check currently selected
database use the command dbdb
• Displays the list of databasesshow dbs
• To Drop the database
db.dropDatabase
()
Basic Database Operations- Database

• To create collection
db.createCollection (name)
Ex:- db.createCollection(Stud)
• List out all names of collection in current
database>show collections
• In mongodb you don't need to
create collection. MongoDB
creates collection automatically,
when you insert some document.
db.databasename.insert
({Key : Value})
Ex:- db.Stud.insert({{Name:”Jiya”})
• MongoDB's db.collection.drop() is used to
drop a collection from the database.
db.collection.drop()
Example:- db.Stud.drop()
Basic Database Operations- Collection

MongoDB Introduction, Installation & Execution

Recommended

More Related Content

What's hot (20)

Similar to MongoDB Introduction, Installation & Execution (20)

More from iFour Technolab Pvt. Ltd. (20)

Recently uploaded (20)

MongoDB Introduction, Installation & Execution

Editor's Notes