mongodb
MongoDB is a free and open-source NoSQL document-oriented database. MongoDB is currently the most popular database for document storage and one of the more popular database management systems worldwide. MongoDB is a NoSQL database and does not use the traditional relational table structure databases but instead use JSON-like document (called BSON - Binary JSON) and builds a dynamic schema.
NoSQL is a type of database that is simplistic and used increasingly for big-data and real-time web applications. NoSQL enables scalability to clusters of servers.
Some notable example of MongoDB being used in industry include:
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Large-scale deployments of MongoDB are tracked by MongoDB Inc. Notable users of MongoDB include: Craigslist: With 80 million classified ads posted every month, Craigslist needs to archive billions of records in multiple formats, and must be able to query and report on these archives at runtime. Craigslist migrated from MySQL to MongoDB to support its active archive, with continuous availability mandated for regulatory compliance across 700 sites in 70 different countries. [https://www.mongodb.com/customers/craigslist]
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eBay uses MongoDB in the search suggestion and the internal Cloud Manager State Hub.[http://www.slideshare.net/mongodb/mongodb-at-ebay]
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LinkedIn uses MongoDB as its backend DB.[https://www.mongodb.com/presentations/building-linkedins-learning-platform-mongodb]
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Shutterfly uses MongoDB for its photo platform. As of 2013, the photo platform stores 18 billion photos uploaded by Shutterfly's 7 million users.[https://gigaom.com/2011/01/28/real-world-nosql-mongodb-at-shutterfly/]
List of the key differences between SQL and NoSQL (MongoDB) [https://www.mongodb.com/nosql-explained]:
References and for more information please see: https://www.mongodb.com/ https://www.mongodb.com/nosql-explained https://en.wikipedia.org/wiki/MongoDB https://en.wikipedia.org/wiki/NoSQL https://en.wikipedia.org/wiki/BSON