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3NF question

From: Elves <nomail_at_nomail.com>
Date: Sat, 8 Jan 2005 14:35:44 +0100
Message-ID: <cronfq$vk$1@inews.gazeta.pl> 





Hello



I am still not sure about meaning of 3NF



Let's say I've got a table, named USERS:



Id   Login   Pass   Description



Id was selected as a key, but login has to be unique, so it's also a key. 
There are dependencies:



Id -> Pass, Description


Login -> Pass, Description


Id -> Login


Login -> Id



is this 3NF or should it be decomposed to two tables like this:



Id Login


Login Pass Description



thanks in advance, Elves 
Received on Sat Jan 08 2005 - 07:35:44 CST












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