Diminishing Returns
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
A thin result set may change how often shoppers click a result. Split every search into three result-set sizes: none, a small set of one to three, and anything larger, then report each size's click-through rate as a percentage rounded to two decimals, from the highest rate down.
Summary
When search comes back thin, does the click still follow?
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