Tauseef FayyazChapter 03
SQL for data work
Pulling the data you need from a warehouse or database: aggregates, joins at the right grain, window functions, and running SQL from your notebook.
6 concepts locked
8 more chapters, 59 more concepts, free with an account.
You have read the open chapters of the Data science sheet. Every concept it covers is listed above, and an account opens the rest of them, the examples, the pitfalls and the whole library alongside it. Early access is open: sign up and your account is active shortly after.
Everything here is free to learn from. A few things, like adding a roadmap, keeping a cheat sheet or asking Tauseef a question, use credits. You get 15 when you join, your first roadmap is free, and if you are learning seriously and run out, you can ask for more. Credits only make sure the platform goes to people who are actually learning.