Union the usernames from users with account_status 'active' and the user_ids cast to varchar from tr
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
Interview Prompt
Union the usernames from users with account_status 'active' and the user_ids cast to varchar from transactions where quantity > 4, aliased to identifier. Use UNION (distinct). Order by identifier ascending.
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