Re: multiple primary keys and reference

From: Achilleus Mantzios <achill(at)matrix(dot)gatewaynet(dot)com>
To: Matt <matthew(dot)berardi(at)weilpublishing(dot)com>
Cc: pgsql-sql(at)postgresql(dot)org
Subject: Re: multiple primary keys and reference
Date: 2002-06-10 14:40:20
Message-ID: Pine.LNX.4.44.0206101735410.11308-100000@matrix.gatewaynet.com
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CREATE TABLE Parts(
PartNo varchar(20) NOT NULL,
machtypesid int4 NOT NULL,
BestPrice decimal(100,2),
Comment text,
PRIMARY KEY (PartNo,machtypesid));

CREATE TABLE MachDefs(
defid serial NOT NULL UNIQUE PRIMARY KEY,
Description text,
PartNo varchar(20),
MachTypeID int4 NOT NULL,
FOREIGN KEY (PartNo,MachTypeID) REFERENCES Parts (PartNo,machtypesid));

--
Achilleus Mantzios
S/W Engineer
IT dept
Dynacom Tankers Mngmt
tel: +30-10-8981112
fax: +30-10-8981877
email: achill(at)matrix(dot)gatewaynet(dot)com
mantzios(at)softlab(dot)ece(dot)ntua(dot)gr

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