ALTER TABLE in SQL | ADD, DROP, MODIFY & RENAME Columns with Examples | Part 47
In this beginner-friendly SQL tutorial, you'll learn how to use the ALTER TABLE statement — one of the most important and frequently used SQL commands in real-world database development.
📌 In this video, you'll learn how to:
✅ Add a new column to an existing table
✅ Add multiple columns in a single statement
✅ Add a column at a specific position
✅ Drop (delete) an existing column
✅ Modify a column's data type and size
✅ Rename an existing column
✅ Understand real-world use cases of ALTER TABLE
This tutorial is perfect for beginners who are learning SQL from scratch and preparing for interviews or becoming Data Engineers, Data Analysts, or Database Developers.
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TIMESTAMPS:
00:00 Overview & Introduction
01:10 Create Employee Table & Insert Sample Data
02:50 ADD Column at the End of the Table
04:40 Add a New Column at a Specific Position
06:45 Add Multiple Columns at Once
08:20 Drop an Existing Column
09:50 Modify a Column (Change Data Type / Size)
13:05 Rename an Existing Column
14:24 Quick Summary
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