Flatten Org Chart Hierarchy
A hard SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- hard
- Seniority
- L5
Interview Prompt
Each employee has a manager_id pointing to their manager's employee_id (NULL for the CEO). Return every employee with their depth in the tree and the full path from CEO down, formatted like a file path with / between names. Results should follow path order.
Summary
The tree runs deep. Walk every branch to the root.
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