Understanding the Definition of Data and Database

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In this class, we will have Understanding the Definition of Data and Database.

This class is the first class of our course, Database Management Systems DBMS.

Understanding the Definition of Data and Database

Data

Data: Data means the Known facts that we can record.

Let’s try to understand this definition by using an example.

If we want to save the phone number of a friend on the mobile contact list, then what are the facts about the friend that we will save.

We will save the name of the friend, phone number, address, and e-mail address.

All the above details are the facts of the friend at can be recorded.

Database

Database: A database is a collection of related data.

The essential point to understand here is related data.

We will try to understand the definition of database by using the analogy of phone-book.

Phone-book is the collection of the fact of the friends and the family numbers.

Generally in a phone book we will store the name, phone number, address, and e-mail address.

The above details are related data.

But collecting the names of the pet dog is not related to the contest of phone-book.

The collection of such related details of all the friends and family is called a database.