Free programme
SQL in the Age of AI
Learn SQL from scratch, then learn to trust the SQL an AI writes for you.
No experience needed - your coding agent teaches each lesson, you write SQL by hand, and it reviews your work while guiding you through the concepts.
3 courses - Free - Runs locally, no account needed
The programme
Three courses. Start with the first - it is live now.
Ask the Data
Write SQL by hand, then audit the SQL an AI agent writes for you.
Start course
Design the Model
Turn vague questions into defensible queries and models an agent can reason about.
Start course
Run the Pipeline
Build, test, and operate a SQL pipeline with an agent as a collaborator.
Start course
Self-paced
Free, start nowOpen the first course and start. No account, no signup, no email.
Start the first courseNext cohort
Free, registerSame lessons, plus a private Slack channel, office hours, and a certificate. Dates are shared after you register.
Register for the next cohortWhy & how
Agents write most SQL now. Your job is to trust it - or catch it.
A query that errors costs you a minute. One that runs and quietly returns the wrong number costs far more - so you learn to read SQL, then one loop for catching it.
Taught by your agent
One prompt to start, then next lesson and review my work - it teaches, sets a task, and grades your query.
Runs locally
One command builds a small dataset on your machine - no cloud, no credentials.
Messy on purpose
Missing values, duplicate keys, and broken links are planted so you learn to find them.
Portable skills
They transfer to dbt, Dataform, SQLMesh, or any stack - Bruin is just the environment.
See a real "silent failure"
# you: total revenue across all orders?
SELECT SUM(order_total) AS revenue FROM orders o JOIN order_items oi ON o.order_id = oi.order_id;
Frequently asked
Questions people ask first
How is the course taught?
By your own coding agent, not by these pages. You paste one setup prompt, then drive with two commands - say "next lesson" and it teaches the lesson and sets a task; do the task by hand and say "review my work" and it runs your query and grades it against a rubric. These pages are a companion you read alongside.Do I need to know SQL already?
No. The first course starts from SELECT and has you writing queries by hand before any agent is involved.What do I need to start?
A terminal you are willing to type into, and an AI coding tool - Claude Code, Cursor, or Codex. No prior SQL, no database, no cloud account, and no credit card. If you can copy and paste one command, you are ready; the agent handles the intimidating parts, including Git.Why not just ask the agent to double-check its own SQL?
Because it checks with the same assumptions it wrote with. If the first query used the wrong join, the self-check usually repeats it. The course teaches you to verify with a genuinely different method, which is what catches a wrong number.What is the difference between self-paced and the cohort?
The lessons are identical and fully open either way - nothing is gated. The cohort adds a private Slack channel, regular office hours, and a certificate on completion. Cohort dates are announced in the community channel after you register.Do I need a cloud account or a warehouse?
No. One command generates a small retail dataset on your machine in about a tenth of a second. An optional MotherDuck path exists if you want a cloud warehouse.How long does it take?
The first course is 15 lessons and about 148 minutes of reading. How long it actually takes depends on how much you practise - most people spend a few hours to a few days per course.
Write your first query today.
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