For each event, list the names of all its properties as prop_names and count how many properties it

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

For each event, list the names of all its properties as prop_names and count how many properties it has as prop_count. Return event_id, prop_names, and prop_count.

How This Interview Works

1. Read the vague prompt (just like a real interview)
2. Ask clarifying questions to the AI interviewer
3. Write your sql solution with real code execution
4. Get instant feedback and a hire/no-hire decision