Noisiest Tables by DQ Failures
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
- L3
Interview Prompt
We run data quality checks against various tables. For each table, show the count of failed checks (where passed is false) and the highest failure percentage among those checks. Rank sorted from most failures to least, and skip tables with zero failures.
Summary
The tables that fail the most checks.
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