Update index.md (#36458)

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Aman Aggarwal
2019-07-15 20:06:45 +05:30
committed by Jonathan Graham
parent 53470d2fd8
commit 9cc82ae521

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## Introduction to the MongoDB and Mongoose Challenges
MongoDB is a database that stores data records (documents) for use by an application. Mongo is a non-relational, "NoSQL" database. This means Mongo stores all data associated within one record, instead of storing it across many preset tables as in a SQL database. Some benefits of this storage model are:
MongoDB is a database that stores data records (documents) for use by an application. Mongo is a non-relational, "NoSQL" database. This means Mongo stores all associated data within one record, instead of storing it across many preset tables as in a SQL database. Some benefits of this storage model are:
- Scalability: by default, non-relational databases are split (or "shared") across many systems instead of only one. This makes it easier to improve performance at a lower cost.
- Flexibility: new datasets and properties can be added to a document without the need to make a new table for that data.