SQLBestPractices : Auto Columns | IDENTITY vs. SEQUENCE vs. GUID Explained

In this video from LearnCodingWithVinay, we explore one of the most essential topics in database design: Auto-generated Columns in SQL Server.

You’ll learn about:
✅ IDENTITY columns
✅ GUID using NEWID() (random)
✅ GUID using NEWSEQUENTIALID() (ordered)
✅ SEQUENCE objects with real-world use cases

We cover practical SQL examples and beginner-friendly explanations to help you understand:
When to use each method
Differences in performance and storage
Real-life use cases
Query cost comparison and data size impact

📊 Perfect for beginners and intermediate SQL learners looking to deepen their knowledge of table design and performance optimization.

🔁 Bonus: Learn how to recycle numbers daily using SEQUENCE with the CYCLE option — a must-know for building queue-based systems!

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