Introduction To Database Management System

 Introduction to Database Management System

In engineering and computer science, DBMS (Database Management System) is one of the most important subjects. It is not only useful for exams like GATE and placement, but also essential for real-world software development.

In this blog, we will cover:
  • What is DBMS
  • Why DBMS is needed
  • Advantages of DBMS
  • Application of DBMS
Everything is explained in a simple and beginner-friendly way.

What Is DBMS?

A database-management system (DBMS) is a collection of interrelated data and a set of programs to access those data. The primary goal of a DBMS is to provide a way to store, manage and retrieve data easily. Some other operation can also be performed on database such as adding, updating and deleting data. Instead of storing data in files, DBMS  stores data in structured format (tables).


Examples of DBMS

  • MySQL
  • Oracle
  • PostgreSQL
  • SQL Server

Why Do We Need DBMS?

Earlier, data was stored using file systems, which caused many problems such as Data redundancy, Data inconsistency, Difficult data access and No proper security. These difficulties, among others, prompted the development of database systems. DBMS solves all these problems efficiently.

Applications of DBMS

DBMS is used in many industries. You use DBMS every day without realizing it:

Social-media: Stores users profiles, post, ranking/like information about post etc.

Banking and Finance: Stores customers information, accounts, loans and transactions. Also store information about storks buying and selling, about trading, bonds, also store real time market data.

Universities: To store student record from it's name to phone number, semester , backlogs, account number, house address etc.

Airlines: For reservations and schedule information.

Healthcare: To maintain the record of every patients and reports for the future reference.

Tele-com: To maintain the call records, text messages, maintaining balances on prepaid calling cards, and storing information about the communication networks.

From the above application you can see that we use DBMS everywhere even if we notice or not we were using it every day in our day to day life. 

Advantage of DBMS

  1. Reduce Data Redundancy(no duplicate data): Redundancy leads to higher storage and access costs. With the use of DBMS we can clean our database by removing all the duplicate values so that it could be much easier for anyone to search through the details and find the data which is required.
  2. Security: Not every user of the database system should be able to access all the data. Therefore DBMS allow access to the data which are of their use.
  3. Reduce data inconsistency: In data inconsistency various copies of same data may no longer agrees. For example, suppose you delete some information from CSE department but the same correct has not been done in main database that will create data in consistency. DBMS provide a platform to reduce data inconsistance.
  4. Difficulty in accessing data: With the help of DBMS we could easily access the data.










Comments

  1. GeoPITS Global Pvt Ltd19 March 2026 at 03:21

    Really enjoyed reading this - super clean and beginner-friendly explanation of DBMS concepts. The way you broke things down makes it easy to connect theory with real-world use. In today’s data-heavy environment, understanding these basics is so important, especially when businesses start relying on professional database management services to handle performance, backups, and security at scale. Looking forward to your next posts - keep it up!

    ReplyDelete
    Replies
    1. CodingNotesHub20 March 2026 at 22:01

      "Thank you so much for your kind words! 😊 I'm glad you found the explanation helpful and easy to understand. You're absolutely right—DBMS fundamentals are crucial in today’s data-driven world. Appreciate your support!"

      Delete

Post a Comment

Popular posts from this blog

Python Input and Output(input() & print())

 Python Input and Output(input() & print()) Introduction Just like we need clear instructions in real life to complete a task, Python programs need input from users to work correctly. In Python, we take input using the input() function , and after processing that input, we display the result as output using the print() function . In this blog, you'll learn Python Input and Output with easy examples. What is Output in Python?  Output means showing something on the screen. Python uses the print() function to display output. Example: print("Hello, world!") Output: Hello, world! Printing Multiple Values You can print multiple values in one line. Code: name = "Sundeep" age = 21 Output: Sundeep 21 Print Text with Variable Code: name = "Python" print("I am learning", name) Output: I am learning Python What is Input in Python? Input means taking data from the user. Python uses the input() function to take user input. Example: name = input(...
Read more

Python Conditional Statements(if, elif, else)

Image
 Python Conditional Statements(if, elif, else)   Introduction In real life, we take decision every day like if rain then take an umbrella, if phone battery is low then charge it, etc. Similarly, in python, conditional statement are used for decision making. In this blog, you'll learn: What conditional statements are if, elif and else What Are Conditional statements? Conditional statements allow a program to perform different action based on whether a certain condition is true or false.  Suppose if we have to find the given number is divisible from 2 or not. Python mainly uses : if  elif else   Let's take above example: Code: #find numbers divisible by two and which are not. b=13 if b%2==0:     print("b is divisible by 2") else:     print("b is not divisible by 2") Output: b is not divisible by 2 The if  Statement The if statement runs code only when the condition is true. if statement can not be written without condition....
Read more