Скачать или смотреть Day 11 SQL SERIES | ✅ Constraints in MySQL | NOT NULL, UNIQUE | 30 Days SQL Series

Welcome back to our 30 Days SQL Series! 🚀
In this video, we will explore Constraints in MySQL – the rules used to maintain the accuracy, consistency, and reliability of data in a database.

👉 In this tutorial, you will learn:

What are SQL Constraints?

NOT NULL Constraint with example

UNIQUE Constraint with example

PRIMARY KEY and AUTO_INCREMENT usage

CHECK Constraint to validate data

DEFAULT Constraint for default values

FOREIGN KEY Constraint for table relationships

📖 These constraints are essential for database design and data integrity, making your SQL knowledge stronger for interviews, projects, and real-world applications.

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