Daily Error Resolution Ratio
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
The reliability team reads a daily health check built from `err_tracks` and `alert_events`. For every day that logged an error, report how many unique services were hit, how many alerts fired that day and were eventually cleared, and the ratio of cleared alerts to services hit.
Summary
Reported versus removed. The daily ratio.
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