The Fault Lines
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
To see which account groups have the roughest time in the product, find each account status's share of events that ended badly, worst first. Treat an event as bad when its type is error, timeout, or crash.
Summary
Some account groups hit far more errors than others. Surface the ones that break 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