SQL for data analysis
Courses, practice and projects with Query & Co.
Request a place →2 courses · 20 lessons · real SQL
Learn SQL by solving real cases.
SQL for data analysis, taught through workplace situations. Write queries, see results and learn at your pace.
30 days free if invited · No card · English and Spanish
Short data ideas for your feedKeep learning between sessions.Quick SQL and data analyst tips from Query & Co. — made for beginners.Follow @queryandcoSELECT player_name, position
FROM players
WHERE position = 'forward'
ORDER BY player_name;
| player_name | position |
|---|---|
| Ada Okoro | forward |
| Kenji Mori | forward |
| Marta Ferreira | forward |
A real query from the football club. You write the whole thing, and a real PostgreSQL answers.
How to join
Get in, in 3 steps.
We are inviting people gradually so their feedback can help shape the platform.
Request a place →- 01Request a placeLeave your email in about 30 seconds.
- 02Receive an invitationIf selected, we will email you.
- 03Create your accountStart your 30 free days, no card needed.
30 days free for new accounts · No card · Feedback is voluntary
Why it sticks
Read the situation
Someone needs a real answer, not a list of commands.
Write the query
Try real SQL on the company’s tables.
See what happened
See the result and get help improving your answer.
You pick where you work
The same SQL, three companies to practise in.
Supermarket chain
Products, orders and an aisle four where the shelf label never matches the box.
Football club
Squad, matches and numbers the coach wants before the press conference.
Marketing agency
Campaigns, ads and a client who calls one click “brand feeling”.
What is inside
Two courses, from your first SELECT to multi-table analysis.
What practice feels like atFootball clubCapybara stays with you while you learn to read tables, filter data and build your first answers.CapybaraCourse 1SQL from Scratch: Your First Data JobGo from zero to delivering your first report with real SQL.12 lessons
What practice feels like atFootball clubCapybara stays with you through more complex queries: joining tables, avoiding duplicates and checking results.CapybaraCourse 2SQL in Action: Solve Real ProblemsSpot traps, combine tables and answer business questions.8 lessons
Two ways to move forward with data.
Query your own files.
Load CSV or Excel, explore columns and use SQL without creating an account.
Free · No account · Files are processed in your browserTry EasyQL →Ready for your first query?
Request a place in the beta. If invited, you can try courses and practice for 30 days with no card.