The Freshest Record
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
- L5
Interview Prompt
The observability team is cleaning up server logs ahead of a weekly review. Same server emitting the same message multiple times should appear only once, keeping the most recent occurrence. After that, narrow the result to entries from the last 7 days. Show every column from the surviving rows.
Summary
Duplicates everywhere. Only the most recent version of the truth survives.
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