For each transaction, show the user_id, transaction_date, total_amount, and the previous transaction

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

For each transaction, show the user_id, transaction_date, total_amount, and the previous transaction's total_amount for that same user (ordered by transaction_date).

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