Then and Now
A hard 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
- hard
- Seniority
- L5
Interview Prompt
For the ML platform team's drift review, what does each model in `ml_models` look like: its average accuracy across its versions, the accuracy of its most recent version, and how far that latest score sits above or below the average of its earlier versions?
Summary
Accuracy used to be higher.
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