Ask HN: What do they mean SQL?

I see all these highest paying jobs/skills to have and I am wondering. I have always programmed in different languages but I never really thought SQL is a language. Sure it is in a way, but you know like not a complicated one. You have joins,unions,some oracle stuff and some functions but hell, do people get 85k/year to just write SQL code? Is there a profession SQL developer? Is this included in the Database Adminstrator job?