From: Gary Stainburn <gary.stainburn@ringways.co.uk>
To: Tomasz Myrta <jasiek@klaster.net>
Cc: pgsql-sql@postgresql.org
Subject: Re: references table(multiple columns go here)
Date: Wed, 18 Dec 2002 16:56:13 +0000
Message-ID: <200212181656.13432.gary.stainburn@ringways.co.uk> (raw)
In-Reply-To: <3E00A678.5070605@klaster.net>
References: <200212181625.11316.gary.stainburn@ringways.co.uk>
<3E00A678.5070605@klaster.net>
Hi Tomasz,
On Wednesday 18 December 2002 4:46 pm, Tomasz Myrta wrote:
> Hello again
>
> Gary Stainburn wrote:
> > Hi folks,
> >
> > how do I define a referene from 2 columns in 1 table to 2 columns in
> > another.
> >
> > I have:
> >
> > create table ranks (
> > rid int4 default nextval('ranks_rid_seq'::text) unique not null,
> > rdid character references depts(did), -- department
> > rrank int4 not null, -- departmental rank
> > rdesc character varying(40) -- Rank Description
> > );
> >
> >
> >
> >
> > I would now like to define the following table so that inserts can
> > only happen
> > if jdid matches rdid and jrank matches rrank.
> >
> > create table jobtypes (
> > jid int4 default nextval('jobs_jid_seq'::text) unique not null,
> > jdid character references ranks(rdid), -- This joint reference
> > jrank int4 not null references ranks(rrank), -- needs sorting
> > jdesc character varying(40) -- job description
>
> !!!here!!! ,CONSTRAINT c2 FOREIGN KEY(jid,jdid) REFERENCES ranks (rid,rdid)
Did this come in with 7.2? I get parse error on or near 'FOREIGN'. Note I
changed the field names to the ones I wanted.
create table jobtypes (
jid int4 default nextval('jobs_jid_seq'::text) unique not null,
jdid character, -- This joint reference
jrank int4 not null references ranks(rrank), -- needs sorting
jdesc character varying(40), -- job description
contraint c2 foreign key (jdid,jrank) references ranks (rdid,rrank)
);
ERROR: parser: parse error at or near "foreign"
>
> > );
>
> that's all
> Tomasz Myrta
--
Gary Stainburn
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To: pgsql-sql@postgresql.org
Cc: gary.stainburn@ringways.co.uk, jasiek@klaster.net
Subject: Re: references table(multiple columns go here)
In-Reply-To: <200212181656.13432.gary.stainburn@ringways.co.uk>
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