The Upgrade Divide
A medium SQL mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- L4
Interview Prompt
Our growth team wants to know how far the latest phone releases have spread across our age groups. For each age group, show the number of users who ran a session on one of those releases next to the total number of users with any session.
Summary
The install numbers don't match the hype.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your SQL against a real database
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision