I teach data visually, step by step, from zero to hero: SQL, Python, Tableau, Power BI and Databricks. Before I taught full-time, I spent years in enterprise data engineering and built one of the largest lakehouses at Mercedes-Benz.
⭐ Everything below is free. If a repository helps you, star it so other learners can find it too.
| Repository | What is inside | The video |
|---|---|---|
| sql-ultimate-course | the databases, every query and the slides of the SQL course | SQL Full Course |
| sql-data-warehouse-project | a data warehouse in SQL Server, from two source systems to gold | SQL Data Warehouse from Scratch |
| sql-data-analytics-project | exploratory data analysis and advanced analytics in SQL | EDA Project · Data Analyst Project |
| tableau-ultimate-course | the datasets, the slides and the workbooks of the Tableau course | Tableau Full Course |
| databricks_bootcamp_2026 | a data lakehouse on Databricks, from bronze to gold | Databricks Bootcamp |
| claude-code-data-engineering-skills | 16 Claude Code skills for data engineers | How I Use Claude Code as a Data Engineer |
More free courses on YouTube: Python Full Course · Power BI · Databricks · Data projects · Data careers
Guides on my website: SQL · Python · Tableau · Power BI · Databricks
To follow a clean structure, track your progress and get certified:
- My Academy: SQL · SQL Handbook · Python · Python Handbook · Tableau
- Udemy: SQL · Python · Tableau
- LinkedIn Learning: Databricks for Data Analysts · Claude Code for Data Analysis