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Design two aggregate tables at different grains (hourly and daily) that can be reconciled with each

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

Domain
Data Modeling
Difficulty
medium

Interview Prompt

Design two aggregate tables at different grains (hourly and daily) that can be reconciled with each other.

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

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