Data & Database

 

📊 DATA

Imagine you have a big toy box. Inside, you keep many small boxes. Each small box has different types of toys—cars, animals, blocks, etc. Let’s use this as an example to explain “data” and “database” in SQL.

  • Data: These are like your toys! Each toy is a tiny piece of information. For example, you have a red car, a blue car, and a yellow dinosaur. Each toy has colors, shapes, and types—these details are “data.”

  • Data can be anything and everything Any information or facts can be considered as data like your name, age, Date of birth, Address, mobile no all this stuff can be considered as data.

  • Data can be in any form like it can be in image format, it can be in video format or can be files and txt it can be anything and can be stored in database

🗃️ DATABASE

  • Database: This is like your toy box. It’s a place where you keep all your toys (data) so you can find them easily when you want to play. The box keeps everything neat and tidy.

  • Database can be considered as container where data or information can be stored which is electronically stored in database.

  • Database are systems that allows users to store and organize the data. They are useful when dealing with large amounts of data.

FOR EXAMPLE:- College Database organizes the data about the admin, staff, students and faculty etc.

FOR EXAMPLE:- Suppose we have to design college timesheet data that can be stored is staff data, college data, student’s data like student’s details, marks, timesheet any many more.

SQL (STRUCTURE QUERY LANGUAGE)

  • SQL: This is like asking your mom or dad to help you find a toy. When you say, “Can you please give me the blue car?”—that’s like using SQL to ask the database for certain information.

So:

  • Data = The toys (information).
  • Database = The toy box (where you keep all your toys).
  • SQL = The way you ask for the toy you want (asking for info).

Purpose of storing data

Purpose of storing data is that it can be easily accessed, managed, modified, protected and can be analyzed.

Any information that you entered is actually stored in database. And data is shown in application actually being retrieved from database.

Using the database, you can easily retrieve, insert, and delete the information.

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