Скачать или смотреть 81. Delete Duplicate Rows in SQL Using CTE | Tamil | Important SQL Interview Question Explained

📝 Description (in English – but suited for Tamil-spoken tech content)

In this Tamil tutorial, you’ll learn how to delete duplicate rows in a SQL table using the CTE (Common Table Expression) method.
We’ll cover step-by-step how to identify duplicate records using the ROW_NUMBER() function and how to safely remove them from your database.

🧠 Topics Covered:

What is a CTE in SQL

How to find duplicate rows using ROW_NUMBER()

Delete duplicates without losing unique data

Works in SQL Server, PostgreSQL, and MySQL

🎯 Perfect for:
Students, Data Analysts, and SQL Developers who want to write clean, professional queries.

📚 Language: Tamil
💡 Level: Beginner to Intermediate

🔖 Hashtags
#SQL #CTE #TamilTutorial #SQLInTamil #DataAnalyst #LearnSQL #SQLServer #MySQL #PostgreSQL #SQLBasics #DatabaseTutorial #SQLQuery #DataCleaning #RemoveDuplicates #TamilTech