Peak Hour Power Callers
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
- L3
Interview Prompt
Support is tracking who leans hardest on the API during the afternoon window, from 3 to 6 PM. Find the users who placed at least 3 calls in that window along with their call counts, busiest first.
Summary
One hour. The phone lines exploded.
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