Custom Message Type Counts
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
- L3
Interview Prompt
The trust and safety team is tracking custom message types being sent to users. For each recipient, count how many times they were sent a message of each non-standard type, and show the recipient, the message type, and the count.
Summary
Not all messages are created equal.
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