MongoDB is a document database. It stores data in a type of JSON format called BSON.
If you are unfamiliar with JSON, check out our JSON and come to know about it.
A record in MongoDB is a document, which is a data structure composed of key-value pairs similar to the structure of JSON objects. We will see some of the functions of MongoDB. There is Data definition language present in it. It is a document-based database. Secondary indexes are present it and query language is present via API. It has atomic writes and built-in horizontal replication via automated range-based partitioning of data called Sharding. There is no join transaction in it. A database is a physical container for collections. Each database gets its own set of files on the file system. A single MongoDB server typically has multiple databases. MongoDB is an open-source document database and a leading NoSQL database. MongoDB is written in C++. This tutorial will give you a great understanding of MongoDB concepts needed to create and deploy a highly scalable and performance-oriented database.
Why do we use MongoDB
Simple queries are present in it. The functionality provided to most web applications. Easy and fast integration of data. But it is not suited for heavy and complex transaction systems.
A MongoDB instance may have zero or more ‘databases’. A database may have zero or more ‘collections’. A collection may have zero or more ‘documents’. A document may have one or more fields. MongoDB ‘Indexes’ function much like their RDBMS counterparts.
Advantages of MongoDB
MongoDB is a document database in which one collection holds different documents. The number of fields, content, and size of the document can differ from one document to another. The structure of a single object is clear. No complex joins. MongoDB supports dynamic queries on documents using a document-based query language that’s nearly as powerful as SQL. MongoDB is easy to scale. Conversion/mapping of application objects to database objects not needed. Uses internal memory for storing the work is being set, enabling faster access to data. MongoDB is widely used in big data and Content Management and Delivery also in Mobile and Social Infrastructure wide User Data Management Data Hub etc…
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