Push Opens by Platform and Campaign
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
The engagement team suspects iOS users are more responsive to push notifications than Android users. Show how many unique users opened a notification on each platform, sorted from most opens to fewest.
Summary
Opens by platform and campaign.
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