The event_data table has a JSON payload column

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

The event_data table has a JSON payload column. For purchase events (event_type = 'purchase'), the payload holds a numeric amount. Return event_id and the amount extracted from the payload, ordered by event_id.

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