Good article. I’m currently using Entity Framework in .net and I’ve designed the latest bit of software I’m developing by using the balanced approach advocated here; the modelling and the RDBMS are both part of the system and have their own constraints one has to bear in mind. After working with EF there’s only one thing I couldn’t express that I can do in SQL and that’s have multiple parent keys in the parent table to represent relationships with multiple children. It took me a while to work out and I believe it is possible in .net core.