Transaction Share of User Spend
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
- L4
Interview Prompt
For each transaction, show the transaction ID, username, the transaction amount, and the ratio of that transaction's amount to the user's overall total as a decimal. Each username is unique and each user has at most one transaction per day.
Summary
Each transaction's share of the whole.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your sql solution with real code execution
- Get instant feedback and a hire/no-hire decision