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🗄 Choose a database

Choose a SQL Simulator

3 interactive simulators — practice SQL on real databases, from the basics to Window Functions and CTEs

🛒
Northwind
The classic sales-company database — customers, orders, products, suppliers, and employees. The go-to for learning SQL from the basics to Window Functions.
16
tables
24K
rows
110
exercises
customers orders products employees suppliers
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🏀
NBA Boxscore
Real NBA data — 12,000 games and 305,000 rows of player statistics from 2013 to today. Perfect for sports analytics and complex aggregations.
3
tables
305K
rows
110
exercises
game_info player_stats team_stats
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⚽
UEFA Champions League
33 seasons of the Champions League (1991–2024) — teams, players, squads, group stages, and knockouts. Perfect for complex JOINs, Window Functions, and CTEs.
7
tables
30K
rows
112
exercises
seasons teams players_list squads knock_out_stage
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📊
Power BI — NBA Analytics
Not SQL — a visual Power BI simulator. Learn DAX from scratch, build dashboards by dragging fields, and practice hands-on with NBA data. Part of the full data workshop.
DAX
formulas
📊
dashboards
NBA
data
DAX Measures Dashboard Visuals
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