📌 Module 1: Introduction to SQL 🔹 What is SQL? 🔹 Database vs. DBMS vs. RDBMS 🔹 Types of Databases (SQL vs. NoSQL) 🔹 Popular SQL Databases (MySQL, PostgreSQL, SQLite, Oracle, MS SQL Server) 🔹 Installing MySQL/PostgreSQL & Setting Up Database ✅ Hands-on: ✔️ Install MySQL/PostgreSQL & Set Up a Test Database 📌 Module 2: SQL Basics - Data Retrieval 🔹 Understanding Database Tables & Schemas 🔹 SELECT Statement – Retrieving Data 🔹 Using WHERE Clause for Filtering 🔹 ORDER BY for Sorting Results 🔹 Using LIMIT & OFFSET for Pagination ✅ Hands-on: ✔️ Retrieve Employee Details from a Database 📌 Module 3: SQL Functions & Aggregation 🔹 Built-in Functions ( COUNT() , SUM() , AVG() , MIN() , MAX() ) 🔹 Using GROUP BY for Aggregation 🔹 HAVING Clause for Filtering Groups 🔹 Using DISTINCT for Unique Values ✅ Hands-on: ✔️ Find Total Salary, Average Salary, and Count of Employees per Department 📌 Module 4: SQL Joins & Relationsh...