User Connection Score
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
In the chat messages table, sender and reply-to pairs represent bidirectional connections. Each user's connection score is their total unique connections divided by total unique users on the platform, expressed as a percentage.
Summary
Every user has a social score.
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