Lecture 4: Learn SQL Constraints the Easy Way! | Hands-on SQL Practical

Are you a beginner learning SQL for Database Testing or Data Analysis?
This video is PERFECT for you! 🎯

In this 5th video of my SQL Practical Series, I will teach you how to use SQL Constraints & Keys — with step-by-step practical examples:
✅ PRIMARY KEY
✅ FOREIGN KEY
✅ UNIQUE
✅ NOT NULL
✅ CHECK
✅ DEFAULT

By the end of this video, you’ll know:
✔️ How constraints help keep your data clean & accurate
✔️ How to test constraints using real SQL INSERTs
✔️ How to write more reliable SQL for testing & analysis work

✨ Whether you're preparing for a Database Tester role or starting with Data Analytics, this hands-on session will boost your SQL skills!

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📚 Watch the full SQL Concepts Playlist here:
👉 Learn SQL Concepts - Full Playlist

👉 Learn SQL Concepts - Through Practicals

👉 Learn SDLC models - Waterfall, Agile
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And let me know in the comments — what topic should I cover next? 🚀

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