Скачать или смотреть Primary Key vs Unique Key in SQL Server | Differences with Real-Time Examples

In this video, you will learn the difference between Primary Key and Unique Key
in SQL Server with clear explanations and real-time table examples.

This tutorial explains how Primary Key and Unique Key work internally,
their rules, differences, and where to use them in real-world database design.

🔹 Topics Covered in This Video:
✔ What is Primary Key in SQL Server
✔ What is Unique Key / Unique Constraint
✔ Primary Key vs Unique Key Differences
✔ NULL values in Primary Key vs Unique Key
✔ One Primary Key vs Multiple Unique Keys
✔ Real-Time Table Example
✔ INSERT Valid & Invalid Examples

🔹 Real-Time Example:
✔ User Table
✔ Email & Aadhaar Unique Constraint

🔹 Why This Video is Important:
Primary Key and Unique Key differences are one of the
MOST ASKED questions in SQL Server & DBMS interviews.

🔹 Who Should Watch This:
🎯 SQL Beginners
🎯 College Students
🎯 Interview Candidates
🎯 Backend Developers
🎯 ASP.NET / Java Developers

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