Apr 29th, 2016
PRE-REQUISITES
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Mongo DB
What is?
MongoDB is a scalable, high-performance, opens source, schema-free, document-oriented database -
mongodb.org
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Mongo DB
What is?
Created as an engine for big objects storage, not to be a database
Objects instead of rows
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Mongo DB
mongo db
RDBMS no longer fits nowadays apps
Facebook, Twitter ...
Need to easily scale (horizontally)
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Mongo DB
Mongo db
- Speed
- Performance
- Flexibility
- Scalability
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Mongo DB
Mongo DB
Not concerned with transactional stuff and relational semantics
Data storage is king! ( not anymore )
Data access is king!
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Mongo DB
Mongo DB
MongoDB tries to achieve the performance of traditional key-value stores, while maintaining functionality of traditional RDBMS
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Mongo DB
Terminology
RDBMS vs MongoDB
Database Database
Table Collection
Row Document
Index Index
Join Embedded
Document
Foreign Key Reference
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Mongo DB
DOCUMENTS
JSON objects
{ 'user' : 'tbonfim', 'age': '28', 'address': [...]}
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Mongo DB
MONGO db
Schema-less - You can change the way you store your data on the fly
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Mongo DB
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Mongo DB
Sharding
Horizontal scaling
Easily split your data into several servers
Much faster than RDBMS
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Mongo db
Support with major languages
Strong and mature Application-level frameworks to handle what is left behind ( Transactions, constraints)
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Mongo DB
References
http://mongodb.org
http://www.mongodb.org/display/DOCS/Tutorial
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Mongo DB