Where the Data Breaks
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
- mid
Interview Prompt
Our automated data-quality suite writes one row per check it runs, and we need to see where records are breaking. For each table that has failing checks, report how many checks failed and how many of those were critical or high severity, most failures first.
Summary
Every dataset has a weak point. Surface the ones the checks already caught.
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