Where in the World Are Our Customers?
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
The go-to-market team assumes most of the customer base is domestic. Out of all customers, what percentage are based in the United States (customers.country = 'United States')? Return a single number rounded to 2 decimal places as us_share_pct.
Summary
One country dominates the logo wall. Or does it?
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