Questions about my personal projects, like what did you do, what was the motivation, methodologies used, algorithms and libraries involved, and the language I built the code in. Questions on technologies I have used like MySQL, PostgreSQL, other forms of SQL. Languages I have worked with and preferrence. Some basic questions of SQL like DDL, joins, etc. They also asked me about conflict management situations like, you have an idea but your boss says to do it another way, what do you do?