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Re: multi2 [message #763 is a reply to message #762]

Tue, 10 April 2007 10:37

AJM
Messages: 2382
Registered: April 2006
Location: Surrey, UK

Senior Member

I assume you mean a candidate or unique key as a database table can have only one primary key.

If your design says that a single phone number can only be used by a single employee, then specifying this is a candidate key would work. Because it is separate from the primary key the framework will allow it to be updated at any time, and will automatically check any new value for uniqueness.

Tony Marston
http://www.tonymarston.net
http://www.radicore.org

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[Message index]

		multi2 By: interop on Mon, 09 April 2007 16:36
		Re: multi2 By: AJM on Mon, 09 April 2007 17:50
		Re: multi2 By: interop on Tue, 10 April 2007 10:27
		Re: multi2 By: AJM on Tue, 10 April 2007 10:37
		Re: multi2 By: interop on Wed, 11 April 2007 11:04
		Re: multi2 By: AJM on Wed, 11 April 2007 11:59

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