Services Hitting Cost Threshold
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
- L4
Interview Prompt
For each month, calculate what percentage of services reached at least $100 in monthly cloud spend. Exclude rows where bill_date is null (cancelled billing entries). Return the month and percentage hitting the threshold.
Summary
The budget line is here. How many crossed it?
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