Monday, January 13, 2014

Transitioning from Relational Databases to MongoDB - Data Models

Understanding how to use MongoDB isn’t difficult, but it does require you to change the way you think about databases if you are coming from a traditional relational database management system (RDBMS). This blog post is designed to help you understand data modeling and schema design in MongoDB from the perspective of someone used to programming with an RDBMS. I’ll explore the fundamental differences between RDBMS and MongoDB and highlight the advantages and design compromises of each approach.

Fundamental Differences
The immediate and fundamental difference between MongoDB and an RDBMS is the underlying data model. A relational database structures data into tables and rows, while MongoDB structures data into collections of JSON documents. JSON is a self-describing, human readable data format. Originally designed for lightweight exchanges between browser and server, it has become widely accepted for many types of applications.

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