Скачать или смотреть SQL Constraints Explained | NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK, DEFAULT

Master SQL Constraints in just a few minutes! In this video, we break down the essential constraints used in SQL to ensure data integrity and accuracy in relational databases.

🔍 What you’ll learn:

What are SQL Constraints?

Types of SQL Constraints:

NOT NULL

UNIQUE

PRIMARY KEY

FOREIGN KEY

CHECK

DEFAULT

Syntax and examples

Where and when to use each constraint

Real-world use cases

🎯 Perfect for:
Students | Beginners in SQL | Interview Preparation | Software Developers

📌 Watch till the end to see real SQL query examples and avoid common mistakes!

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