Stumbling Out of the Gate
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 ML platform team wants to know how often a model version's first training run ends in failure. Taking each (`mdl_name`, `version`)'s earliest run by `train_at`, give the percentage of those first runs that failed, among the ones that reached a final outcome.
Summary
Some model versions never recover from a bad opening run.
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