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The Schema Differ

A medium Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain
Python
Difficulty
medium
Seniority
mid, senior

Interview Prompt

Schema drift between staging and production keeps breaking the nightly load. The governance team wants an automated diff. Write a function that takes two schemas (lists of column dicts with 'name' and 'type') and returns what was added, removed, and which columns changed type.

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 python solution with real code execution
  4. Get instant feedback and a hire/no-hire decision