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Authors Deploying to Dev and Production

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
Seniority
mid

Interview Prompt

The release engineering team wants to identify authors who ship to both the dev and production environments (case-insensitive match). Show each qualifying author and how many of those two environments they have deployed to, listed alphabetically.

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