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functional dependencies tht do not hold

From: Nabil <nabil.siddiqui_at_gmail.com>
Date: 1 Jun 2005 00:53:31 -0700
Message-ID: <1117612411.022377.69920@g44g2000cwa.googlegroups.com> 





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??
Received on Wed Jun 01 2005 - 02:53:31 CDT












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