The Weak Link
A medium SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- L4
Interview Prompt
The platform team is reviewing CI reliability and wants to know which repositories break the most. For each repository, return the percentage of its builds that ended in a 'failed' status, rounded to two decimals and worst first, breaking any ties by repository name.
Summary
Build failures happen. Which repos break the most?
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