Session Page View Distance
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 UX research team is studying engagement depth within sessions. For each session, identify the first and last page view by view_id, then compute the distance as the last view's dur_ms minus the first view's dur_ms. Discard any session that contains only a single view. Return the average distance across all qualifying sessions. Sessions are linked to page views through user_id.
Summary
Page view distance per session.
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