Do you know what a Database is and the type of database model. You would know that there is so much demand for data and information in today's world. Data and Information In a short time, you can only find it by searching the Internet. You have to do so much work; you have to write your questions in Mobile Browser or in Google Search.
Within a few seconds, you will get the answers to your questions. Major companies know their Employees (Name, Salary, IDno, and Address). Information of children studying in college and schools such as Name, Roll no, Address, City, Everything is available in Internet nowadays. But where people are present in the Internet, less people know this thing. But you will get the answer soon.
Now all the Aadhar Cards are being made in India, I mean almost crores of Adharcard have been made. All these information are also in the Internet. Banks and Online Reservation (Train, Flight, Hotel) in these also change a lot of data everyday.
Transaction in the bank is done through computer and mobile. There also remains data, but Transaction also happens to millions of people. Now you have another question in your mind. Where is the details store of all these transactions?
Sometimes you must be wondering where all this data and information lives. Is there an AC space in the Internet? Or does a man sit down and write? The answer to all these is Database. Also know that without the database Internet is nothing. So let's know what a database is today.
