Any relational database has a typical schema design that shows number of tables and the relationship between these tables. While in MongoDB, there is no concept of relationship.

Advantages of MongoDB over RDBMS

• Schema less − MongoDB is a document database in which one collection holds different documents. Number of fields, content and size of the document can differ from one document to another.

• Structure of a single object is clear.

• No complex joins.

• Deep query-ability. MongoDB supports dynamic queries on documents using a document-based query language that”s nearly as powerful as SQL.

• Tuning.

• Ease of scale-out − MongoDB is easy to scale.

• Conversion/mapping of application objects to database objects not needed.

• Uses internal memory for storing the (windowed) working set, enabling faster access of data.

Why Use MongoDB?

• Document Oriented Storage − Data is stored in the form of JSON style documents.

• Index on any attribute

• Replication and high availability

• Auto-Sharding

• Rich queries

• Fast in-place updates

• Professional support by MongoDB

Where to Use MongoDB?

• Big Data

• Content Management and Delivery

• Mobile and Social Infrastructure

• User Data Management

• Data Hub

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