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Transaction Overview

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

Domain
SQL
Difficulty
easy
Seniority
L3

Interview Prompt

The finance team needs two numbers for the board slide: how many users have made at least one purchase, and the average transaction amount across all transactions.

Summary

The executive snapshot. Users, products, revenue.

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

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