What is unique_id in Oracle and what's the use of it

From: newa <DavidLLiu1_at_gmail.com>
Date: Tue, 29 Jan 2008 19:47:54 -0800 (PST)
Message-ID: <3a4b8be1-1ce8-4402-9e94-1c295e22e871@k39g2000hsf.googlegroups.com>


I am new to Oracle and today someone asked me about the "fference between unique_id and primary key. Which to use and why?" I know about the primary key but not unique_id. Can someone kindly give me an overview of it?

Thanks in advance. Received on Tue Jan 29 2008 - 21:47:54 CST

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