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NoSQL Databases

We know that MongoDB is a NoSQL Database, so it is very necessary to know about NoSQL Database to understand MongoDB throughly .

What is NoSQL Database

Databases can be divided in 3 types:

  1. RDBMS (Relational Database Management System)
  2. OLAP (Online Analytical Processing)
  3. NoSQL (recently developed database)

NoSQL Database

NoSQL Database is used to refer a non-SQL or non relational database.

It provides a mechanism for storage and retrieval of data other than tabular relations model used in relational databases. NoSQL database doesn?t use tables for storing data. It is generally used to store big data and real-time web applications.

History behind the creation of NoSQL Databases

In the early 1970, Flat File Systems are used. Data were stored in flat files and the biggest problems with flat files are each company implement their own flat files and there are no standards. It is very difficult to store data in the files, retrieve data from files because there is no standard way to store data.

Then the relational database was created by E.F. Codd and these databases answered the question of having no standard way to store data. But later relational database also get a problem that it could not handle big data, due to this problem there was a need of database which can handle every types of problems then NoSQL database was developed.

Advantages of NoSQL

  • It supports query language.
  • It provides fast performance.
  • It provides horizontal scalability.




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