| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
Home -> Community -> Usenet -> comp.databases.theory -> Re: A pk is *both* a physical and a logical object.
Just as another example of what i'm on about with this construct
m'larkey: Imagine the library has two copies of "harry potter and the
deathly hallows". Are they the same book?
There's no correct answer, and which you pick just depends on the application. A Loans database could use Barcodes; A library listings database could use ISBN. Received on Thu Jul 26 2007 - 05:23:35 CDT
![]() |
![]() |