The Ones Who Clicked
A hard SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- hard
- Seniority
- L4
Interview Prompt
We're comparing search quality across signup cohorts for a shopping marketplace, grouping users by the calendar year they joined. For each cohort, return how many searches its users ran, how many of those ended in a clicked result, and the resulting success rate.
Summary
Every signup cohort runs its searches. Find the years that turned queries into clicks.
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