The Weight of a Click
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
The growth team wants an engagement breakdown across four commerce events: page_view, search, checkout_start, and purchase. For each event, show how many unique users performed it and that count as a percentage of the four counts combined, most users first.
Summary
Where users actually spend their attention.
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