Welcome to your interview.
The question is on your right: Left vs Inner Join for Claims. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
Explain the difference between a LEFT JOIN and an INNER JOIN in the context of matching member profiles with pharmacy claims, specifically explaining how you would handle members who have no claims.