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    MongoDB is an open source, cross-platform, and the most popular NoSQL database program. Each database has collections which in turn has documents. The data stored is in the form of JSON style documents (rows).


    Schemaless: Documents don't need to have a schema defined beforehand. Instead, the creation of the field happens on the fly.

    Fast Access: It uses internal memory for storing the (windowed) working set, enabling faster access to data.

    Replication: MongoDB can provide high availability with replica sets. A replica set consists of two or more mongo DB instances.

    No complex joins : instead of joins, it supports embedding or referencing to access related data

    No need for complex ORM (mapping from relational database tables to application objects )

    Language support: It has official drivers for major programming languages and development environments.

    JSON based structure allows to store complex nested schemas. It plays well with NodeJS , which also understand json natively


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  • One can learn Mongo Database from Mongo Database University(https://university.mongodb.com/). They offer the free courses with certification after completing it successfully.

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