NoSQL databases provide high operational speed and increased flexibility for software developers and other users when compared to traditional tabular (or SQL) databases.
The data structures used by NoSQL databases—key-value, wide column, graph, or document—differ from those used by relational databases. As a result, NoSQL databases. NoSQL databases can be scaled across thousands of servers, though sometimes with loss of data consistency. But what makes NoSQL databases especially relevant today is that they are particularly well suited for working with large sets of distributed data, which makes them a good choice for big data and analytics projects.