The Green Light
A easy SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- L3
Interview Prompt
The release team wants the roster of engineers who have landed at least one successful deployment. Return one entry per author, skipping any record with a blank author.
Summary
Success hides behind a dozen spellings. Find who actually shipped.
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