Platform Check
A easy SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- L3
Interview Prompt
The QA team is profiling performance regressions and wants to know which device and operating system each unusually long session ran on. For every session that lasted more than a thousand seconds, return the user, the device type, the operating system, and how long the session lasted.
Summary
When a session drags on, the platform it ran on is the first suspect.
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