On Tuesday, 19 July 2022 at 18:05:34 UTC, Antonio wrote:
In a relational database, `NULL` is not the same that `""`... and `NULL` is not the same that `0`. Are semantically different and there are database invariants (like foreign keys) based on it. Trying to "mix" this concepts in a database is a mistake.
So, it's an implementation detail or a relational database that leaks into business logic because nobody thought about it? Just because a relational database has many features, it doesn't mean business logic must use them all, it must use only what makes sense for business logic.
When you treat with Domain Models, you try to represent this semantics in all levels of your software... including APIs
What semantics your domain models implement? Is it semantics of all features of a relational database or is semantics of business logic?
