Consecutive Cost Growth Periods
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
- L5
Interview Prompt
A FinOps team is auditing cloud cost trends and wants to flag stretches where spend kept climbing. Taking total spend per billing period, find each run of consecutive periods where the total rose, and return where each run started and how long it lasted.
Summary
Five straight months of spending increases.
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