Re: functional dependencies tht do not hold
From: Nabil <nabil.siddiqui_at_gmail.com>
Date: 1 Jun 2005 23:00:25 -0700
Message-ID: <1117692024.999606.128030_at_g44g2000cwa.googlegroups.com>
Date: 1 Jun 2005 23:00:25 -0700
Message-ID: <1117692024.999606.128030_at_g44g2000cwa.googlegroups.com>
Jan Hidders wrote:
> Nabil wrote:
> > hey,
> > i have been studying databases for a while now . There exist some
> > cases where it is usefull to store even those FD's that do not hold.
> > Ofcourse we save these as not holding and do not use them while
> > normalizing. Does ne1 know when it is helpfull to store fd's that do
> > not hold??
>
> Sure, but this sounds a bit like a home-work problem, so could you tell
> a bit more about why you want to know this?
>
> -- Jan Hidders