I had an initial phone interview with an HR person. After asking some basic questions about my history and expectations, I was told they would get back to me regarding a test.

They sent me the information regarding the test that evening, and I completed it a few days later.

I was then told I would be interviewed by two engineers, again over the phone. Since this was for their database team, they asked some questions related to database internals.

Specifically, can you explain the life of a query starting from the user issuing the query? This is the only one I really recall, since the others were not very significant.

I think the most difficult part was the life of query questions, which I answered fairly well, given that my last role was as a developer for a major database vendor.