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How do a non unique index enforces primary key constraint?

From: hypermodern <faltoobd_at_yahoo.com>
Date: 20 Oct 2004 11:04:49 -0700
Message-ID: <fcefb078.0410201004.141d9d72@posting.google.com>


Hi all
I am preparing for OCP. I have came across this in the student book that a non-unique index can enforce a primary key constraint. I don't get it. Can anybody explain this please.

Thanks

Fast Eddy Received on Wed Oct 20 2004 - 13:04:49 CDT

Original text of this message

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