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NULL Foreign Key - Mailing list pgsql-general

From	Kuhn, Dylan K (NDTI)
Subject	NULL Foreign Key
Date	July 17, 2002 11:01:17
Msg-id	E706EFF2C59F0541A2BC43B99E1ED15322ED32@nwms14.chinalake.navy.mil Whole thread Raw
Responses	Re: NULL Foreign Key (Manfred Koizar <mkoi-pg@aon.at>)
List	pgsql-general

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Greetings,

I'm about to conclude that I can't do this, but I thought I'd ask first:

Can I make a foreign key that is allowed to be NULL?  I have several
situations where I want a field to reference another table, but not be
required.

thanks,

Dylan Kuhn
New Directions Technologies, Inc.

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From: Ian Linwood
Date: 17 July 2002, 11:01:14
Subject: Re: Tom, I've got an emergency - please help me

From: Clive Page
Date: 17 July 2002, 11:01:21
Subject: Re: Fortran functions?

NULL Foreign Key - Mailing list pgsql-general

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