Rapid Retry Detection
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
- L5
Interview Prompt
During an incident postmortem, the on-call engineer needs to detect retry storms. Using the api_calls table, find all calls where the same user hit the same endpoint within 5 minutes after a call that returned an error status (status >= 400). Return the user_id, endpoint, the failed call time, and the retry call time.
Summary
Detect retried API calls within 5 minutes of failure.
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