[libdb-develop] parts again

[Bruce D'A. <bd...@fa...>]

As I was thinking about handling parts again, I'm thinking maybe it 
should be pretty simple; that it shouldn't require anything in 
particular, except maybe a way to identify the part location within a 
larger work (page or chapter numbers, for example).

Let's take an example of an episode of a TV show that is contained on a 
DVD (not coincidentally the same structure as a book chapter).

episode is a work
it is manifest (or expressed?) as:
	A.	partOf a television show (a serial), with identifier of "broadcast 
date"
	B.	partOf a DVD, with identifier of "chapter number" (and perhaps 
"volume number"?)

While I was first thinking the linking relationship would happen 
strictly at the work level, I guess in this case, the idea might be to 
link the episode manifestation to the other two "isPartOf" containers, 
which are works?

I really don't get SQL, but can this now be represented in the 
database?  Put differently, notwithstanding the initial UI focus on 
movies, can the database now handle a journal article, complete with 
volume, issue and page numbers in their own fields?

Bruce