MongoDB Vs Relational DBMS

MongoDB Vs Relational DBMS 

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

• Schema-less, and contains Documents.

• Indexable by one/more keys.

• Created on-the-fly when referenced for the first time.

• Capped Collections: Fixed size, older records get dropped after reaching the limit.

 • Stored in a Collection.

 • Can have the _id key – works like Primary keys in MySQL.

 • Supported Relationships – Embedded (or) References.

 • Document storage in BSON (Binary form of JSON).