What are NoSQL databases and how do they work?
NoSQL databases have come veritably popular. They're used by large organizations to store hundreds of petabytes of data and to reuse millions of queries per second. But what's a NoSQL database? How does it work and why does it scale so much better than traditional relational databases? Let's see the problem with relational databases like my SQL, Maria DB, SQL Server. These are built to store relational data as efficiently as possible. You can have a table for customers, orders, and products linking them together logically. Customers place orders and orders containing products. This tight organization is great for managing your data. But it comes at a cost. Relational databases have a hard time scaling. They've to maintain these relationships and that is a ferocious process taking a lot of memory and compute power. So, for a while, you can keep upgrading your database server, but at some points, it will not be able to handle the load. In technical terms, we say ...