Udemy – Modern SQL Mastery: Beginner to Expert with PostgreSQL

This course is a complete and practical guide to mastering Modern SQL using PostgreSQL, designed to take you from absolute beginner to advanced level with confidence. Unlike traditional SQL tutorials that focus only on syntax, this course emphasizes hands-on learning. You will build real databases, write real queries, and understand how SQL is used in real-world data analytics and engineering scenarios. By the end of this course, you will be able to confidently work with SQL in professional environments and solve real business problems using data.

What You Will Learn:

• Understand databases, schemas, tables, rows, and columns
• Learn SQL command categories including DDL, DML, DCL, and TCL
• Write powerful queries using SELECT, WHERE, ORDER BY, LIMIT, and FETCH
• Perform data analysis using aggregate functions like COUNT, SUM, AVG, MIN, and MAX
• Work with GROUP BY and HAVING for analytical queries
• Master all types of JOINs including INNER, LEFT, RIGHT, FULL, and CROSS
• Write efficient subqueries and Common Table Expressions (CTEs)
• Use window functions for advanced analytics
• Create and manage views and materialized views
• Understand stored procedures, functions, and exception handling
• Build an end-to-end SQL project using retail and e-commerce datasets

Why This Course Is Different:

• Uses PostgreSQL, one of the most powerful and widely used open-source databases
• Focuses on real-world SQL usage, not just theory
• Includes a complete SQL project to simulate real industry scenarios
• Ideal for learners who want practical, job-ready SQL skills