Seen and Unseen
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
- L4
Interview Prompt
The engagement team wants to know which platforms actually get push notifications read. For each platform, give the open rate as a percentage of notifications sent, highest first.
Summary
Every ping lands somewhere. Not every one gets read.
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