I find SQL to have a usage profile that's, not surprisingly, similar to other declarative languages. Then tend to have a sweetspot of functionality that, if you

I find SQL to have a usage profile that's, not surprisingly, similar to other declarative languages. Then tend to have a sweetspot of functionality that, if you stay within, makes them very easy to use even for less experienced people. But outside the sweetspot, things tend to go south very rapidly and you end up needing detailed implementation knowledge that the language will fight against.