SQL remains one of the most consistently requested skills in data and development roles, and knowing only the basics limits what you can answer. This course covers the full progression, from SELECT statements through joins, subqueries, CTEs, and window functions, with the concepts applying across major database platforms.

This Course Offers

• SQL fundamentals covering SELECT, WHERE, ORDER BY, GROUP BY, and HAVING with operators and expressions
• Aggregate functions including COUNT, SUM, AVG, MIN, and MAX, plus grouping and summarizing data
• Joins across INNER, LEFT, RIGHT, and FULL, plus NULL handling with COALESCE and NULLIF and conditional logic using CASE
• Advanced techniques including subqueries, Common Table Expressions, and window functions with ROW_NUMBER, RANK, and DENSE_RANK
• Advanced grouping using ROLLUP, CUBE, GROUPING, and GROUPING SETS, plus regular expressions and report generation

Why We Love This Course

1. No prior SQL or database experience is required, so it works as a genuine starting point.
2. Window functions and CTEs get proper coverage, and these are what separate intermediate from advanced SQL skills.
3. The skills transfer across PostgreSQL, MySQL, and SQL Server, so you are not locked into one platform.
4. At four hours across two hundred and thirty five lessons with downloadable resources, the material is broken into small, digestible pieces.

SQL shows up in analyst, developer, and business intelligence roles alike, and being fluent with complex queries changes what you can answer independently. Do you want to keep requesting extracts, or pull the data yourself? Enrollment is open, and no prior experience is needed.

• This course is perfect for complete beginners who have never written SQL before.
• It suits students wanting a comprehensive, step by step SQL course.
• Developers, data analysts, and professionals working with relational databases will find the advanced techniques directly applicable.

• A computer with internet connection and basic computer skills are all you need to start.
• No prior SQL, database, or programming experience is required.
• A willingness to practice queries and work through the hands on examples will help you progress faster.

Interested in exploring more lessons? Check out our full course library to continue building your skills and advancing your learning journey.