We all know that in a traditional setting a database implements a relational model of data organized in row and columns. We call it popularly as RDBMS as studied earlier in this chapter. However, NoSQL databases are very different from this traditional setting.
A NoSQL database is a kind of database that doesn't store data in a row-column format or in other words tabular format. The most common approach used is to store data in the form of JSON document. JSON, which is a very popular format for data exchange can actually be used to organize data in key-value pairs. There is actually a wide classification under which NoSQL databases can be broadly classified. They are as follows:
- Key-value stores
- Document databases
- Wide-column stores
- Graph stores
Now, the question arises, why NoSQL? This is a very important question to be asked to big enterprises with the...
