The article was written at a time when "polyglot" wasn't common iirc ... to the extent that knowing SQL in addition to a programming language wasn't common. To

The article was written at a time when "polyglot" wasn't common iirc ... to the extent that knowing SQL in addition to a programming language wasn't common. Today the thinking "keep all domain logic in code" would take you to crazy places given the diversity of systems we need to build applications. "A foolish consistency is the hobgoblin of little minds" and all that. If anything it seems more sensible to centralize storage of all business rules in the DB.