What is MongoDB
MongoDB is an open-source document database that provides high performance, high availability, and automatic scaling.
In simple words you can say that - Mongo DB is a document oriented database. It is an open source product, developed and supported by a company named 10gen.
MongoDB is available under General Public license for free and it is also available under Commercial license from the manufacture.
The manufacturing company 10 gen has given the definition of Mongo DB:
"Mongo DB is scalable, open source, high performance, document oriented database." - 10 gen
MongoDB was designed to work with commodity servers. Now it is used by company of all sizes, across all industry.
Purpose to build MongoDB
This may be a very genuine question that - "what was the need of MongoDB although there were many databases in action?"
This is a very simple answer:
All the modern applications require big data, fast features development, flexible deployment and the older database systems not enough competent, so the MongoDB was obviously needed.
Main purpose to build MongoDB:
Key points of MongoDB