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Subject: Re: [provision] Reference capability.
Re-posting. Originally posted November 29 (so the phrase "last Face-to-Face" below actually refers to the Face-to-Face in Long Island). Gary P Cole wrote: > I cannot find the examples of Reference definitions and modifications > that came out of the last Face-to-Face. I recall that we went through > several flavors of reference modifications that varied depending on > the cardinality of the reference type. > > I need to know/remember: > > 1. How does one name a reference type? For example, how would one > define an "owner" reference from Account to Person? (I seem to recall > that we had a way to do this.) > > 2. Can one specify the direction of a named type of reference? For > example, can one specify that "owner" is from Account to Person? If > so, how? > > 3. Can one specify cardinality for a named type of reference? > For example, can one specify that an Account can have only a single > "owner"? Can one also specify that a Person can own multiple Accounts. > (As I recall, we decided to assume many-to-many.) > > 4. Can one specify an inverse for a named type of reference? For > example, can one specify that "owns" reference from Person to Account > is the inverse of "owner"? > (As I recall, we blew this off entirely.) > > If you remember any of this (or can point me to a document), I'd > appreciate it. > > gpc
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