Re: many columns with references to one table

From: Dennis Gearon <gearond(at)fireserve(dot)net>
To: Andreas Fromm <Andreas(dot)Fromm(at)physik(dot)uni-erlangen(dot)de>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: many columns with references to one table
Date: 2003-08-26 15:02:39
Message-ID: 3F4B768F.9070907@fireserve.net
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You haven't given the table/column that it references, just the column I
assume.

Andreas Fromm wrote:

> Hi,
>
> What is the problem with the following table declaration?
>
> CREATE TABLE persons (
> id SERIAL PRIMARY KEY,
> name TEXT NOT NULL,
> bdate DATE,
> address INTEGER REFERENCES addresses,
> phonepriv INTEGER REFERENCES phones,
> phoneday INTEGER REFERENCES phones,
> phonemobil INTEGER REFERENCES phones,
> email INTEGER REFERENCES emails,
> mate INTEGER REFERENCES persons,
> updated DATE NOT NULL
> );
>
> My problem is that the references to the phones table do not get
> restricted, i.e. I can insert any value in the phone*-fields, while
> the references to the other tables are restricted to values that
> allready exists. The table declaration of phones should be all right,
> it has a primary key defined like every other tables I have. Is there
> a restriciton that no more then 1 column may reference an other table?
>
> Regards
>
> Andreas Fromm
>
>
>
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