NoSQL(also known as "Not Only SQL") represents a completely different framework of databases that allows high-performance, agile processing of information at massive scale i.e. it is a database infrastructure that has been very well-adapted to the heavy demands of big data.
The efficiency of NoSQL can be achieved because unlike relational databases that are highly structured, NoSQL databases are unstructured in nature which accounts for its speed & agility. NoSQL revolves around the concept of distributed databases where unstructured data may be stored across multiple processing nodes and often across multiple servers, this distributed architecture allows NoSQL databases to be horizontally scalable as data continues to explode by just adding more hardware without slowing down its performance. The NoSQL distributed database infrastructure has been the solution to handle some of the biggest data warehouses in the world like Google, Amazon, and the CIA.
The efficiency of NoSQL can be achieved because unlike relational databases that are highly structured, NoSQL databases are unstructured in nature which accounts for its speed & agility. NoSQL revolves around the concept of distributed databases where unstructured data may be stored across multiple processing nodes and often across multiple servers, this distributed architecture allows NoSQL databases to be horizontally scalable as data continues to explode by just adding more hardware without slowing down its performance. The NoSQL distributed database infrastructure has been the solution to handle some of the biggest data warehouses in the world like Google, Amazon, and the CIA.