Primary Key Explained in DBMS (Beginner Friendly)

In this video, I have explained the concept of Primary Key in a very simple and practical way using Excel examples 📊 so that even beginners can understand easily.

👉 What you will learn:

What is a Primary Key?
Why do we need it in DBMS?
Rules of Primary Key (No Duplicate, No NULL)
Simple Primary Key vs Composite Primary Key

💡 This video is perfect for:

Students learning DBMS
Beginners preparing for exams
Anyone who wants to understand database basics clearly

🧠 Key Concept:
A Primary Key uniquely identifies each record in a table and ensures data integrity.

📌 Example:
Roll Number in a student table acts as a Primary Key because it is unique for every student.

👍 If you found this video helpful:
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Видео Primary Key Explained in DBMS (Beginner Friendly) канала JustAddLogic