Campaign Click Rate
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
Limit to users who also appear in page_views. For each ad campaign, compute the percentage of that campaign's impressions which were clicked. Show the campaign and clicked percentage, highest first.
Summary
Among engaged users, which campaigns landed.
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