Skill Topic · Cinematic

📘 SQL COUNT, AVG, SUM - Ginti, Average aur Total

COUNT ginta hai, AVG average nikalta hai, SUM total jodta hai — yeh teen aggregate functions bohot…

Overview

📘 SQL COUNT, AVG, SUM - Ginti, Average aur Total — Quick Facts

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Function: Kaam

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`COUNT()`: Rows ki ginti

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`AVG()`: Average (ausat)

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`SUM()`: Total (jod)

Topic 1

📌 Aggregate Functions Kya Hain?

📚 Aggregate functions poore column pe kaam karte hain aur ek value return karte hain: |…

Topic 2

📌 Demo Database — Products Table

Topic 3

📌 COUNT() — Ginti Karna

🎯 Kitni rows hain? `sql -- Total kitne products hain? SELECT COUNT(*) AS TotalProducts FROM…

Topic 4

📌 AVG() — Average (Ausat)

⭐ `sql -- Saare products ka average price SELECT AVG(Price) AS AveragePrice FROM Products;…

Topic 5

📌 SUM() — Total (Jod)

🔑 sql -- Saare products ka total price SELECT SUM(Price) AS TotalValue FROM Products; |…

Topic 6

📌 Sab Ek Saath!

✨ `sql -- Ek query me COUNT, AVG, SUM teeno! SELECT COUNT(*) AS TotalProducts, AVG(Price)…

Topic 7

📌 GROUP BY Ke Saath

🌟 Category wise statistics: `sql SELECT Category, COUNT(*) AS TotalItems, AVG(Price) AS…

Topic 8

📌 NULL Ka Impact

🚀 ⚠️ AVG aur SUM NULL values ko ignore karte hain! ` NULL Handling:…

Topic 9

📌 Functions Comparison

📚 ` ┌──────────┬──────────────────┬────────────────────┐ │ Function │ Kya Karta Hai │ NULL…

Topic 10

✅ Summary

💡 KEY POINTS: - COUNT() = rows ki ginti karta hai - AVG() = average (ausat) nikalta hai -…

Quick Quiz

Quiz — Question 1

📘 SQL COUNT, AVG, SUM - Ginti, Average aur Total ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

📘 SQL COUNT, AVG, SUM - Ginti, Average aur Total ka 'COUNT()' kya hai?

Complete! 🎉

📘 SQL COUNT, AVG, SUM - Ginti, Average aur Total Complete!

Aliens School · HIEN · Cinematic Knowledge

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