IMO, “wrong question”, but thanks for asking.

IMHO - “class” definitions are really just a data structure (abstractly, a possibly-nested hash) with associated functions, and that’s it.

This is extremely apparent in Perl, where that’s literally what a “class” is - a hash data structure “blessed” with a class name. JS is almost identical (a class is a hash where some of the values are functions), and “under the hood” both Ruby and Python are similar (although in very different ways - consider that the first arg in a member function in Python is the instance).

Database schema is (usually/mostly) just that structure without those functions; then you maybe use an ORM to provide them again.

So, IMO, on a theory and design level, both the database table and the data part of a class definition are “data structures” (note that you should include in considerations the relationships between data structures)