Seen and Unseen
An easy 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
- easy
- Seniority
- L4
Interview Prompt
Users on one platform keep complaining that they never see their two-factor codes, and the support lead wants `push_notifs_2fa` to settle which platform it is. Give each platform's open rate as a percentage of the codes sent to it, highest first.
Summary
Every ping lands somewhere. Not every one gets read.
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