Peak Concurrent Batch Jobs
A medium SQL mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- 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 and run your SQL against a real database
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision