The difference between Order By Name and Order By Key in trivial attributes

This is a straigthforward follow-up to the last post.

Suppose you have a trivial attribute, i.e., its key is mapped to a single column of a relational data source. Its name and value has been ommitted, i.e., corresponds to a representation of the key.

Now Order By Name (which should be the default) will lead to a lexicographic order based on the representation while only Order By Key will use the natural ordering of the underlying data type.

I´m sure you or the various books of your choices did know this already. But I didn´t.