Welcome

Hi 👋 I’m Vlad Gheorghe. Welcome to my free SQL course.

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Video playlists

• Intuitive SQL For Analytics
• Let’s Solve 42 PostgreSQL Exercises!

Introduction

The goal of this course is to quickly get you up to speed on using SQL for analytics.

After this course, you should be able to confidently solve hard SQL challenges on your own.

The course assumes no previous knowledge of SQL or programming. It helps if you’ve worked with spreadsheets before (e.g. Microsoft Excel or Google Sheets).

There are two parts to the course: theory and practice.

• Theory. Short and sweet explainers of SQL fundamental concepts. For this part I write code in BigQuery, which uses the GoogleSQL dialect. I also do explanatory drawings and break things down with the help of spreadsheets.
• Practice. The practical part involves doing exercises on the free website https://pgexercises.com/. In the videos, I solve and break down each exercise. These exercises run on PostgreSQL, which is a slightly different SQL dialect.