MongoDB is an open-source and cross-platform database that uses a document-oriented data model. It is a kind of NoSQL database. Being a NoSQL database, it avoids the relational database’s table-based structure to adapt JSON-like documents that offer dynamic schemas which it calls BSON.

BSON provides a binary representation of JSON-like documents. In general, documents contain sets of key-value pairs and are the basic unit of data in MongoDB. It was turned into one of the most popular NoSQL databases, being used as the back-end for many giant websites comprising eBay.


  • It is a document database in which one collection holds different documents.
  • There may be a difference between the number of fields, size, and content of various documents.
  • It can hold large volumes of structured, semi-structured, and unstructured data.
  • It offers agile sprints, quick iteration, and frequent code pushes.
  • It allows horizontal scalability by using a technique called sharding.
  • It provides ACID properties at the document level.
  • It uses internal memory for storing working sets, and that is the reason behind its fast access.
  • It provides the facility of a deep query as it supports a powerful dynamic query on documents.
  • It supports the common authentication methods like AD, LDAP, and certificates.
  • It is a cost effective solution as it enhances flexibility and decreases cost on hardware as well as storage.

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