- A database is a collection of information that is organized so that it can easily be accessed, managed, and updated.
The most prevalent approach is the relational database, a tabular database in which data is defined so that it can be reorganized and accessed in a number of different ways. A distributed database is one that can be dispersed or replicated among different points in a network. An object-oriented programming database is one that is congruent with the data defined in object classes and sub classes.
In today’s World, Data plays a vital role in every business. In our day to day life, we see or interact with many applications and Software’s, every application that we see or work with will have two parts:
1.GUI (Graphical User Interface / Front end)
2.Database
To keep it simple GUI is the part where user interacts with (like Facebook application’s – look and feel) and the Data that we see in the application (like Facebook profile, messages, images and videos) are pulled from Database.
End User who interacts with the application may not know how the data is being fetched and where so much of information is stored. Internally all the dynamic content that we see in the application is fetched from Database.
Database and all its components should be designed and configured at the time of application development.
Once the application is developed we will not be able to make changes to the database structure as every
change will hugely affect the business application GUI code.
It is very important to make sure that data is securely maintained and accurately stored. So to maintain security and accuracy in database a set of rules / software system is defined and that we call it as
DBMS (Data Base Management System – which performs all the operations on the database)
