On Thu, Jun 26, 2003 at 01:02:06 -0400, Mike Mascari <[EMAIL PROTECTED]> wrote: > > Hi, > > > > Just a quick question, not unrelated to my > > previous question, which I don't think will > > get answered. I have a table with 13 fields. > > Is that too many fields for one table. > > Mathematically, a binary relation represents the relevant cross > product of two domains, x and f(x):
A binary relation is a subset of the cross product of two sets. This is more general than using x and f(x) since this implies some restrictions on the subset (namely that there is only one tuple with a specific member of x in the x part of the tuple). ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
