What is MongoDB?

MongoDB is the leading open-source NoSQL database. The most common application of MongoDB is as a primary backend data store owing to its ability to store information in an unstructured format. Besides, MongoDB is considered a highly scalable and powerful database

Records in MongoDB are referred to as documents which are data structures with a field and value pairs. MongoDB documents are akin to JSON (JavaScript Object Notation) objects but differ due to the use of a variant called Binary JSON (BSON) that has the ability to accommodate additional types of data. Moreover, the fields in the documents are similar to columns in relational databases. Data types in MongoDB documents can be other documents, arrays or arrays of documents. These flexible documents allow for a change of data-structure from time to time.

Characteristics of MongoDB

MongoDB is a non-relational database which falls under the NoSQL category best suited for big data applications. The architecture of MongoDB makes use of documents and collections that incorporate a unique identifier which is markedly different from that of relational databases. The flexible JSON-like documents allow for data consistency and change of data structure from time to time. 

MongoDB utilizes ad hoc queries, real-time aggregation, and indexing to access and analyze data. At its core, MongoDB is a distributed database which confers the advantages of ease of use, great availability, and horizontal scaling. Horizontal scaling is the feature that makes it the database of choice for companies deploying big data applications

Benefits of MongoDB

MongoDB is compatible with different storage engines and has the ability to plug to storage engine APIs. This latter feature makes it popular with third parties who develop custom storage engines for MongoDB. A few notable facts:

When to use MongoDB

MongoDB is best suited for fast and scalable data storage services. It makes a popular option when creating databases for performance-critical applications in big data, mobile apps, data hubs, social networking infrastructure, and user data management. 

The use of MongoDB is prohibited for applications that need table joins or require ACID compliance. MongoDB is not built to support joins which is a time-consuming process since it is built for fast performance.

MongoDB is used for large scale applications that depend highly on efficient performance. Facebook makes use of MongoDB where the subtle increase in performance has a big impact on user experience.

A commercial version of MongoDB is also available and comes with support. 

MongoDB @ Infogion

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