Do you know when some naive people claim that build a "simple CRUD app" is easy, but a OS or a Database engine or a Game engine or Language or Super-Cool-Algo_performace-magnificence or Super-Science-thingy is hard? All of them are super-wrong. All of them are long, hard projects. All of them requiere specific skills, that maybe are hard to know because you don't find much info about how do them (for example, I haven…
What do you mean by "relational language"? I'm imagining SQL when you say that, but I guess you have something different in mind. You've piqued my interest.
http://www.try-alf.org/blog/2013-10-21-relations-as-first-cl...
Before I found this, most talk was at the more theoretical level and about:
https://en.wikipedia.org/wiki/The_Third_Manifesto
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However, I learn first FoxPro. Is more closer to my own idea (in fact, is what I'm after!) because is practical and is proven... yet the xbase family of languages fade in obscurity for weird reasons (http://wiki.c2.com/?ExBase talk about some and MS killing both Visual Basic and Visual FoxPro because .NET, making the the death of the most popular and practical) without any modern undertaking.
This make a huge community of developers that, I suspect, left the market (without citation because is my experience in my local market) because more "normal" languages are not as appealing as database-oriented languages. In fact, despite I love python/delphi as the most productive languages I have used, none is closer to Fox in the area of database-based apps. Is just another league.