Zero-Retry Job Ratio by Priority
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
- L4
Interview Prompt
The batch processing system tracks retry counts per job. Calculate the ratio of jobs that completed without any retries to total jobs, broken down by priority level. A zero-retry job has retries equal to 0. Show the priority, count of zero-retry jobs, total jobs for that priority, and the ratio, from lowest ratio to highest.
Summary
No retries needed. First try success rate.
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