Composed UID -- beginner's question

From: geos <geos_at_nowhere.org.invalid>
Date: Thu, 31 Aug 2006 06:47:52 +0200
Message-ID: <ed5pmh$20q$1_at_atlantis.news.tpi.pl>



hello,

when reading Oracle's manual for students I saw the following example on composed unique identifiers:

http://tinyurl.com/jc7ra

could anybody give me a hint what a query for extracting a row from LIST ITEM table should look like, and exemplify what its colums could be to fullfill this EM diagram? I have a problem understanding "composed UID" issue, I'd appreciate any explanation of it with some examples if posssible.

thanks,
geos Received on Thu Aug 31 2006 - 06:47:52 CEST

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