ALTER TABLE in PostgreSQL Explained in 7 Minutes (Table Manipulation Made Easy!) - DAY 09
на канале: code4coin
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📌 Description
Want to learn SQL Aggregate Functions fast? In this video, I explain COUNT, SUM, AVG, MIN, and MAX in under 6 minutes using PostgreSQL with simple and practical examples.
If you're preparing for Data Engineering, Data Analyst, or SQL interviews, these aggregate functions are a must-know.
🚀 What You’ll Learn:
What are SQL Aggregate Functions
How to use COUNT(), SUM(), AVG(), MIN(), MAX()
Real examples using PostgreSQL
Common mistakes beginners make
How aggregate functions are used in real-world data scenarios
🎯 Who Is This For?
Data Engineers
Data Analysts
Beginners learning SQL
Anyone preparing for SQL interviews
🔍 Keywords (for search optimization):
SQL aggregate functions, SQL tutorial, PostgreSQL tutorial, COUNT SUM AVG MIN MAX, SQL for beginners, data engineering SQL, SQL interview questions, learn SQL fast, SQL crash course, aggregate functions explained
💡 Pro Tip:
Mastering aggregate functions is the foundation of data analysis — almost every real-world query depends on them.