SQL Subqueries Tutorial in One Video | Correlated & Non-Correlated | Creative Notes

In this video, we explain SQL Subqueries in a simple and detailed way with real SQL examples. This lecture covers everything from basic subqueries to advanced correlated subqueries, making it perfect for students, beginners, exams, and interviews. You will learn how subqueries work, where they are used, and how different operators like IN, ANY, ALL, and EXISTS behave in real SQL queries. 🔍 Topics Covered in This Video • What is a Subquery in SQL • Rules of Subqueries • Single-Row Subqueries • Multi-Row Subqueries • IN, ANY, ALL operators explained • Nested / Non-Correlated Subqueries • Correlated Subqueries (Row-by-Row Execution) • EXISTS & NOT EXISTS • Subqueries with aggregate functions • Exam-oriented & interview SQL queries • practice examples 👉 What you’ll learn in this SQL Tutorial : 00:00:00 – Introduction to SQL Subqueries 00:00:52 – Rules for Subqueries 00:01:34 – Types of Subqueries (Overview) 00:02:20 – Types of Nested / Non - Correlated Subqueries 00:02:27 – Single-Row Subquery 00:03:43 – Multi-Row Subquery 00:04:28 – IN Operator (Explanation & Examples) 00:05:11 – ANY Operator (Concept & Examples) 00:06:17 – ALL Operator (Concept & Examples) 00:08:47 – Practice Exercise 00:09:50 – Introduction to Correlated Subqueries 00:11:58 – Exam & Interview-Based SQL Questions #SQL #SQLSubqueries #CorrelatedSubquery #NestedSubquery #DBMS #LearnSQL #SQLTutorial #SQLForBeginners #AdvancedSQL #SQLInterviewQuestions #Database #Programming