Unit 2: What is Database?

What is Database?



A Database is a collection of related data organized in a way that data can be easily accessed, managed and updated.
In a database, we would be grouping only related data together and storing them under one group name called table.



For example below:
_Library catalogues 
_Medical records 
_Bank accounts 
_Product catalogues 
_Telephone directories 
_Train timetables 
_Airline bookings 
_Credit card details 
_Student records 
_Discussion boards and so on…

Databases are useful because: 
Many computing applications deal with large amounts of information 
Database systems give a set of tools for storing, searching and managing this information

Database systems are systems in which the interpretation and storage of information are of primary importance.
It is a system that allows users to Store, Update, Retrieve, Organize, and Protect their data.