That's a new term to me. I've never heard it before.

Doing a few searches, I don't think it's any kind of industry standard term, but one that is used either regionally or within a particular skill set. Most of the results suggested that it was something more likely associated with Oracle.

It's not a term I would use. In general I talk about database administrators and database developers, which mean about what you'd expect. These are the generally used terms. You can be senior, mid-level, or junior in either of these positions. You may also be an architect level person. That's usually someone who has gone a little above & beyond either of these two general roles. There are other roles, specialties usually, that you may see, report writer, data miner, ETL or SSIS expert.

But that term, nope.