Lecture 6: String Functions in SQL with Hands-On Demos

Are you new to SQL and want to master working with text data?
This video is perfect for beginners in database testing and data analysis! 👨‍💻👩‍💻

In this 7th video of the SQL Practical Series, we’ll focus on essential SQL String Functions you’ll use in real-world projects.

✅ What You’ll Learn:
🔹 UPPER() – Convert text to uppercase
🔹 LOWER() – Convert text to lowercase
🔹 INITCAP() – Capitalize first letter of each word
🔹 LENGTH() – Count characters in a string
🔹 SUBSTR() – Extract part of a string
🔹 INSTR() – Find position of a substring
🔹 CONCAT() / || – Combine strings

🎯 These functions are used to:
✔️ Clean and standardize data
✔️ Validate user input like names and emails
✔️ Build meaningful text output for reports
✔️ Prepare SQL queries for testing and debugging

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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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