mobile typing isn't scored — practice only
SELECT u.id, u.name, COUNT(o.id) AS orders
SQL · general · type the snippet below to practice
def fib(n):
a, b = 0, 1
for _ in range(n):
a, b = b, a + b
return a
about this snippet
This is the topusers snippet in SQL — 7 lines of real SQL code that exercises common patterns you'll see in production. DeveloperType scores you on net WPM and accuracy and only counts runs above 95% accuracy on the leaderboard, so practice rewards precision, not speed alone.
view source (7 lines)
SELECT u.id, u.name, COUNT(o.id) AS orders
FROM users u
LEFT JOIN orders o ON o.user_id = u.id
GROUP BY u.id, u.name
ORDER BY orders DESC
LIMIT 10;
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