Skill Topic · Cinematic

🗄️ Topic 59: SQL for Data Science — Database Ka Foundation!

⏮️ Previous: 58-Geospatial-Analysis | ⏭️ Next: 60-Advanced-SQL 📂 Section 8: Big Data & Databases…

Topic 1

🎯 Is Topic Me Kya Sikhenge?

📊 ` ╔═══════════════════════════════════════════════════════════════╗ ║ 🗄️ SQL FOR DATA…

Topic 2

📌 SQL Basics — Data Query Language

💾 ` ┌──────────────────────────────────────────────────────┐ │ SQL QUERY EXECUTION ORDER │…

Topic 3

1️⃣ SELECT, WHERE, ORDER BY

🗄️ `sql -- ═══ BASIC SELECT ═══ SELECT name, age, salary FROM employees; -- ═══ WHERE with…

Topic 4

2️⃣ JOINs — Tables Connect Karo

📈 ` ┌─────────────────────────────────────────────────────────┐ │ JOIN TYPES EXPLAINED │…

Topic 5

3️⃣ Aggregations & GROUP BY

🔍 `sql -- ═══ Basic Aggregations ═══ SELECT COUNT(*) AS total_employees, AVG(salary) AS…

Topic 6

4️⃣ Subqueries

📉 `sql -- ═══ Subquery in WHERE ═══ -- Average se zyada salary wale employees SELECT name,…

Topic 7

5️⃣ CASE WHEN — Conditional Logic

🧮 `sql SELECT name, salary, CASE WHEN salary >= 100000 THEN 'Senior' WHEN salary >= 60000…

Topic 8

🐍 Full Python Class — SQLEngine

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Create & populate database

🔑

CRUD operations

⚡

JOINs (INNER, LEFT, RIGHT, FULL)

🎯

Aggregations & GROUP BY

Topic 9

📊 SQL vs pandas Comparison

📊 ` ┌──────────────────────┬────────────────────┬──────────────────┐ │ Operation │ SQL │…

Topic 10

❓ Quiz Time! (5 MCQs)

💡

a) SELECT

🔑

b) FROM ✅

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c) WHERE

🎯

d) ORDER BY

Quick Quiz

Quiz — Question 1

🗄️ Topic 59: SQL for Data Science — Database Ka Foundation! ka sabse sahi definition kya hai?

Complete! 🎉

🗄️ Topic 59: SQL for Data Science — Database Ka Foundation! Complete!

Aliens School · HIEN · Cinematic Knowledge

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