Five data worlds designed around real edge cases
Use this inventory to scan the scope of the hub.
- Each original dataset page explains the fictional domain, schema complexity, tables, grains, keys, relationships, row counts, and intentional edge cases.
- Learning use is explicit: datasets are tied to modules, reviews, playground practice, and capstone work without requiring the app runtime to understand the schema.
- Downloadable SQL or CSV formats are described only when the product actually exposes them; otherwise provenance and local seeded execution remain the canonical facts.
Explore the datasets
Choose a course, reference page, dataset, or project. Practice opens in the app when you are ready.
Open a dataset in the workspace
Use these guides to choose the next topic, then open the workspace for the editor, checks, drafts, reviews, and saved progress.