Services With Multi-Quarter Uptime
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
The SRE team considers a service stable only if it recorded healthy checks across multiple quarters. Find the services that had at least one healthy check in two or more separate quarters of 2026.
Summary
Multi-quarter uptime streaks.
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