The Path Not Taken
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
- L5
Interview Prompt
The product team is measuring organic adoption of the new editor, which shows up in the page views under the URL 'new_editor' while the old one appears as 'classic_editor'. Find the users who reached the new editor without ever having opened the classic editor before their first new editor visit.
Summary
Some found the new path without ever walking the old one.
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