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Same-Day Session and Transaction Correlation

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

Domain
SQL
Difficulty
hard
Seniority
mid

Interview Prompt

Find users who started a session and placed a transaction on the same calendar day. For those users, show user ID, the date, total transactions, and total transaction amount for that day.

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