Amazon Business Intelligence Developer interview questions

I was contacted by a recruiter on LinkedIn, did two phone interviews. The first one was a technical interview with the Hiring Manager and a second one with behavioral questions by a business analyst. I'm scheduled for the on site interview,

I had 4 rounds of interview. Round 1 - had SQL, database related theory questions and questions around projects and general discussion. Round 2 - SQL hard questions and discussion on a dataset problem on which the interviewer was currently working, some python questions. Round 3 - HR Round. Normal HR questions which I asked using STAR technique. Round 4 - Bar Raiser. Again SQL problems and some problems related to tableau which I couldn't answer.