SQL Subqueries Full Tutorial (2Hr56Min) 🔥| Placement, Types & Business Use Cases Explained + Quizzes

Unlock the full power of SQL subqueries in this comprehensive 2hr 56min 10sec masterclass! Whether you're a beginner or an aspiring IT professional this video breaks down every subquery type with real-world business cases, visual aids, and hands-on examples. Learn here SQL Subqueries from beginner to advanced — all in one complete 2 hour 56 minute 10 second tutorial!
This video covers types of subqueries, real-world business use cases, and quizzes to test your knowledge.
Perfect for students, data analysts, data scientist, s/w developer, s/w Testers ,DBA and placement preparation.

By the end of this video, you’ll understand how to write, optimize, and apply subqueries in real-time business databases used in analytics and interviews.
🔍 What you'll learn:
• Subquery placement: SELECT, FROM, WHERE, HAVING
• Scalar, Multi-row vs single-row subqueries
• Correlated subqueries with performance tips
• Multi-column subqueries for job matching
• Nested subqueries with aggregation logic
• Query optimization strategies
⏱️ Timestamps: 00:00:00 – Introduction to Subqueries
00:05:12 – Subquery Placement Explained
00:18:45 – Scalar, Single-Row vs Multi-Row Subqueries
00:36:20 – Correlated Subqueries (with JOIN comparison)
01:05:10 – Multi-Column Subqueries (Job Matching Case)
01:32:40 – Nested Subqueries (Product Performance Case)
02:10:00 – Aggregation with Subqueries & other SQL context
02:35:00 – Real-World Scenarios & Interview Questions
02:50:00 – Final Recap & Best Practices
02:56:10 – End of Session
📘 Highlights

Learn SQL Subqueries step-by-step with real data

Includes business case studies & hands-on examples

Covers WHERE, FROM, SELECT , HAVING clause subqueries

End with quiz & interview-level questions

Best for Data Analysts | Data Scientist| DBA | s/w Developer| Automation Testers| Computer Students| Interview Preparation| Hackathon

Видео SQL Subqueries Full Tutorial (2Hr56Min) 🔥| Placement, Types & Business Use Cases Explained + Quizzes канала Tech & Beyond with Jasmine