Are you ready to move from writing simple SELECT queries to building complex, production-ready SQL that powers real analytics?

This course takes you step-by-step from absolute beginner to advanced SQL practitioner, focusing on practical skills data professionals use every day.

You’ll start by understanding relational databases, tables, and the basic query structure (SELECT, FROM, WHERE, ORDER BY), then quickly progress to joins that combine multiple tables, aggregations with GROUP BY, and filtering groups with HAVING. Along the way you’ll learn essential functions for strings, dates, and numbers, plus conditional logic using CASE.

The course emphasizes readability and maintainability: you’ll master subqueries and Common Table Expressions (CTEs) to break large problems into clear steps, and you’ll practice refactoring queries for performance and clarity. Advanced modules cover window functions (ROW_NUMBER, RANK, LAG, LEAD, running totals, moving averages), set operations (UNION, INTERSECT, EXCEPT), and advanced join patterns used in reporting and analytics. Optional lessons show safe data modification with INSERT/UPDATE/DELETE and basic schema creation.

Every concept is taught with live demonstrations and realistic datasets so you can apply skills immediately. You’ll complete hands-on exercises and real-world projects that build a portfolio of reusable queries. By the end, you’ll be able to write efficient, well-structured SQL for analytics, reporting, and data engineering tasks — a skill set employers actively seek. Join now and transform how you work with data using SQL.