Lucid statement of the MV vs RM position?
From: <ralphbecket_at_gmail.com>
Date: 19 Apr 2006 22:18:17 -0700
Message-ID: <1145510297.269563.19460_at_j33g2000cwa.googlegroups.com>
A number of people on this group are proponents of Pick (MultiValue) DBMS. I've been trying to find a definition for MultiValue to give me a better handle on the arguments MV types often advance against the relational model.
Date: 19 Apr 2006 22:18:17 -0700
Message-ID: <1145510297.269563.19460_at_j33g2000cwa.googlegroups.com>
A number of people on this group are proponents of Pick (MultiValue) DBMS. I've been trying to find a definition for MultiValue to give me a better handle on the arguments MV types often advance against the relational model.
That said, debate on the topic still goes on and on
in this group, so I assume I have failed to grasp
something important about MV. Is there a clear,
*concise* explanation somewhere of (a) a formal
(preferably set theoretic) model of MV, and (b)
how integrity constraints are expressed and enforced
in an MV database?
(On www.pickwiki.com I came across "A formal
mathematical critique of Relational Theory and its
MultiValue opposition", which I hoped would be a
lucid expression of the MV vs RM position, but
unfortunately it turned out to be just plain wrong
where it wasn't incoherent.)
- Ralph