Every Touch Counts
A medium SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- junior
Interview Prompt
We run an online vehicle auction marketplace and want to surface our most engaged shoppers from 2026. Treating every ad impression and every site search a person made that year as one touchpoint, total the touchpoints per user across both sources, most active first.
Summary
A bid, a click, a search: each one is a vote. Total them honestly.
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