What is database?

A database is a place where we can store the data. Before we had the technology, databases were kept manually by using books like ledgers and any tools that we could use to store the data. As time evolved the software took place, the database tools like Postgresql, MySQL, and many tools that can be named out there to store the data in our software application.

Database can be divide into two categories that is sql and no-sql. The selection in between the sql and no-sql is depends on the project requirement and how the data to be stored and query.