I meant the Virtuoso OpenLink database software. https://en.wikipedia.org/wiki/Virtuoso_Universal_Server https://en.wikipedia.org/wiki/Virtuoso_Universal_Server

I meant the Virtuoso OpenLink database software. https://en.wikipedia.org/wiki/Virtuoso_Universal_Server https://en.wikipedia.org/wiki/Virtuoso_Universal_Server RDF triple stores were the latest hype during Semantic Web era. Wouldn't a more general NoSQL/Graph or SQL database be suitable as well, if soneone wrote an import script. I read someone achieved in with MySQL and a star table schema. What database software is WikiData using? WikiMedia properties usually use MySQL. From the dumps page they have SQL files as well, so probably MySQL. But they promote just the JSON, RDF and XML dumps.