The Heaviest Hitters
A easy SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- L3
Interview Prompt
The ad ops team is auditing which impressions pulled in the most money. Surface the three highest-revenue impressions, each with when it occurred and the revenue it earned, biggest earner first.
Summary
A handful of impressions earn more than the rest combined. Bring them to the top.
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