Radio Silence
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
An engineering manager is auditing repositories that have gone quiet, where a repository's longest silence is the widest stretch of days between two back-to-back commits. Commit timestamps are stored as text and the queries run on SQLite, so the day count has to come out of the stored timestamps. Surface the quiet repositories with their longest silence and their standing, most silent first.
Summary
Some codebases stop speaking for too long.
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