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From: Gary Stainburn <gary.stainburn@ringways.co.uk>
Organization: Ringways Garages Ltd
To: Tomasz Myrta <jasiek@klaster.net>
Subject: Re: references table(multiple columns go here)
Date: Wed, 18 Dec 2002 16:56:13 +0000
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Cc: pgsql-sql@postgresql.org
References: <200212181625.11316.gary.stainburn@ringways.co.uk>
	<3E00A678.5070605@klaster.net>
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Message-Id: <200212181656.13432.gary.stainburn@ringways.co.uk>

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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