Learn analytics by doing it.
30 courses take you from your first SELECT to SQL, Python and pandas, data warehouses, pipelines and the tools behind big data. Every lesson comes with a lab that runs real SQL and real Python in your browser, on the same running example company, so you see the query, the output and whether your answer is right. Nothing to install.
The first course is free in full — lessons, labs, final exam and the certificate. No card, no trial clock.
Not a quiz about queries — SQL and Python themselves, running in your browser. Write SELECT statements or pandas code, read the output, get told if your answer is right. 240 labs so far.
Why a join fans out, when a laptop is enough and when it is not, what a metric actually measures. The idea is explained, then done — with the exact query or code and its exact output.
Pass the final exam and get a certificate with a public verification link and a PDF — one for every course you finish.
One running example, all the way through.
Every course works on the same fictional company, Alpenkorb AG, an online grocer in Zurich, so a join or a pipeline you learn in one lesson is a table you already know in the next. SQL where SQL is the right tool, Python and pandas where they genuinely help, and a clear note whenever a topic (a Spark cluster, a cloud warehouse) is explained rather than run, because the browser lab cannot spin one up. Available in twelve languages, on the web and on iPhone and iPad.
30 courses, in order
30 courses · 240 lessons · one certificate each
Start with the free course.
If it teaches you something you can use tomorrow, the rest are waiting.
Open Data-Driven Decisions: From Question to Answer