Alert Severity
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
- L5
Interview Prompt
The streaming infrastructure team is analyzing message ordering within each topic. For each message, show its offset, the previous message's offset within the same topic, its dense rank by offset within the topic, and its sequential row number within the topic. Only include messages that have a predecessor in the same topic.
Summary
When the alarms go off, who screams loudest?
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