SQL Quest

Lessons, hints, explained solutions, the in-browser PostgreSQL editor and practice answer checks in your browser are available. Graded assessments, recorded progress from answer checks and new certificates aren't available yet.

SQL for Business Analysts

For analysts who sit between the business and the data team: precise filtering and aggregation, joins across operational systems, KPI definitions that survive scrutiny, and data cleaning. The capstones analyse fulfilment operations and clinic operations end to end.