First I would like to thank Pavel for helping me with the Named Graph article. Today we are finally sharing a few articles on Medium under the agnos publication, and as promised, I'm sharing the final links here:
I think that the great thing about these articles is that they use a RDF triplestore that was migrated from a well-known sample relational database, which allows people to run SQL and SPARQL queries side by side. This can be very useful for learning SPARQL, when you already know SQL, or to validate new feature proposals for SPARQL 1.2, for example, where you can show what you want in SQL, and then validate future implementations by running SPARQL against a equivalent triplestore.
Let me know what you think and any feedback is very welcome. Thank you. Marcelo.