The Floor Price
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
- L3
Interview Prompt
Ahead of reserved-instance negotiations, the FinOps team wants to anchor their bid on the smallest real charge each cloud provider has ever billed. The amount column mixes genuine charges with credits and refunds that land as zero or negative, so consider only the actual amounts paid. Show each provider with its lowest charged amount, cheapest first.
Summary
Before the negotiation, find what each provider really charges at its cheapest.
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