Consecutive Cost Growth Periods
A hard SQL mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- 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 and run your SQL against a real database
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision