Скачать или смотреть Primary Key Explained in 1 Minute!

In this quick and easy tutorial, I explain what a Primary Key is and why it’s one of the most important concepts in databases and SQL.

💛 You’ll learn:
✓ What a Primary Key does
✓ Why every table needs one
✓ How Primary Keys keep your data unique and organized
✓ Real-life examples to make it simple
✓ A quick look at how to create one in SQL

This video is great for absolute beginners, students, and anyone learning SQL for the first time. I break it down in a simple, friendly way so you can understand it in minutes.

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