Friday Spending Analysis
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
- L3
Interview Prompt
We're profiling how Friday transactions move through the opening weeks of the year. For each Friday in the first 13 weeks, find the average transaction amount and present it by week number.
Summary
Friday spending during Q1.
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