Three Peaks
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
- L4
Interview Prompt
We track cloud spend as individual cost allocations, each tagged to a team, a service, and a billing month. For each team, surface its three highest monthly cost totals, listed alphabetically by team and then from the biggest amount down.
Summary
Every team's steepest months, and nothing below them.
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