Data & AIAll levelsCompleted

SQL for Everyone

Ask your data questions in an afternoon.

100%

13 of 13 core lessons done

Every lesson complete. Nice work.

Curriculum

4 sections · 13 core lessons (of 26) · 5 hours

01First queries
3/3
- CompletedWelcome & the shop databaseVideo · 4 min
- CompletedSELECT, WHERE and ORDER BYVideo · 12 min
- CompletedCheck-in: your first queriesQuiz · 5 min
02Summarising data
3/3
- CompletedCounting and groupingVideo · 13 min
- CompletedHAVING and conditional sumsVideo · 11 min
- CompletedQuiz: aggregatesQuiz · 8 min
03Joining tables
3/3
- CompletedInner and left joinsVideo · 15 min
- CompletedReading: drawing joins on paperReading · 6 min
- CompletedProject: answer five business questionsProject · 40 min
04Beyond the basics
4/4
- CompletedSubqueries and CTEsVideo · 14 min
- CompletedWindow functions, gently explainedVideo · 16 min
- CompletedDates and time zonesVideo · 10 min
- CompletedFinal project: a KPI query packProject · 60 min

Issued Sep 28, 2026

Core lessons13/13

Quizzes passed2/2

Projects submitted2/2

Files used in this course

Mei-Lin Ota

Data scientist

Mei-Lin spent eight years in climate research and teaches data analysis with real, messy datasets.

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