Using a CTE named big_spenders that selects user_id and SUM(total_amount) AS total from transactions

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

Interview Prompt

Using a CTE named big_spenders that selects user_id and SUM(total_amount) AS total from transactions grouped by user_id with total over 100, return user_id and total from big_spenders ordered by total descending, limit 5.

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