Loading interview...

Top Chat Contributors

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 chat_messages table records senders and reply_to references. Find the top 10 most active users by total messages. A user can be either a sender or a receiver (via reply-to). Count both sent and received messages per user, sorted from most active to least, limited to 10.

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