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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
Our push notification system flags whether each notification was opened and records the campaign that sent it. Find the campaigns whose opens trail the average campaign, listed with the fewest opens first.
Summary
Every campaign fights for the tap. Find the ones the field is leaving behind.
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