Completion Rate
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
- L4
Interview Prompt
Operations wants to compare how cleanly each region closes out orders. For each region, compute the percentage of orders whose status is 'Completed', skipping rows where region is NULL. Return the region and that completion percentage.
Summary
Not every region closes orders cleanly. The percentages tell the story.
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