DQ Score Spread
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
We run data-quality checks per table, where a table's overall total is the fail percentage summed across all of its rules. Return the gap between the table with the highest total and the one with the lowest.
Summary
The spread in data quality scores.
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