Top 2 Active Push Days
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
We run a mobile app and want to know which days of the week our push notifications reach the widest audience. Surface the two weekdays that reached the most unique users, busiest first.
Summary
Two days stood out from the rest. Which ones?
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