SQL 10 AM Batch Training : Session 11
🛡️ UNIQUE Constraint in SQL | Data Analytics Course for Beginners 📊
In this short and powerful lesson from our Data Analytics Course, you’ll learn how to use the UNIQUE constraint in SQL to ensure data integrity and prevent duplicate entries in your database tables.
📚 What You’ll Learn:
✅ What is the UNIQUE constraint in SQL?
✅ How to apply UNIQUE to one or more columns
✅ Differences between UNIQUE and PRIMARY KEY
✅ Real-world examples (email, usernames, product codes)
✅ Common mistakes and how to fix constraint violations
💡 Perfect For:
✔️ Beginner SQL learners
✔️ Aspiring Data Analysts
✔️ Students & professionals working with databases
✔️ Anyone building clean, structured data for analysis
🛠 Works with: MySQL | PostgreSQL | SQL Server | SQLite
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