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Custom Message Type Counts

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
junior, mid

Interview Prompt

The trust and safety team is tracking custom message types sent to users. Count how many times each user was on the receiving end of a message with a non-standard type (anything other than 'text' or 'image'). Show each recipient, message type, and 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