Average Update Call Latency
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
- L3
Interview Prompt
The platform team is investigating whether API latency improves after a user's initial handshake. An 'update call' is any API call after a user's earliest one. What is the average latency across all update calls platform-wide?
Summary
Follow-up calls. How fast?
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