Spending Range
A hard SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- hard
- Seniority
- L5
Interview Prompt
Data science is modeling per-user spending variability and needs the minimum and maximum transaction amount for each user who has more than one transaction. Show the username, min amount, max amount, and the range, sorted from widest range to narrowest.
Summary
Between the smallest purchase and the biggest lies the story.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your sql solution with real code execution
- Get instant feedback and a hire/no-hire decision