The interview lasted around 2 hours and included a small warm-up, a presentation of career options, and testing of hard skills. I received some feedback afterward, and the interviewers were relatively kind. I was not prepared for drawing and presenting an already self-implemented system, but after a short stumble, I remembered my approach and could give a quite okay presentation.

Some not-too-complicated SQL statements written on paper.

Creating an ER diagram based on a textual use case.

Explaining database indexes, data warehousing, and drawing an already self-implemented system (could be a project from studies).