Peak Concurrent Batch Jobs
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
- L4
Interview Prompt
We're sizing scheduler capacity around the worst pile-up. Each job runs from its start time to its end time; return the largest number of jobs running at the same instant, as a single number.
Summary
Jobs pile up. Find the moment the scheduler sweats the most.
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