From: | Marin D <marin(at)cybernet(dot)bg> |
---|---|
To: | Pich LY <ly(at)esigetel(dot)fr> |
Cc: | pgsql-sql(at)postgreSQL(dot)org |
Subject: | Re: [SQL] FOREIGN KEY ... |
Date: | 1998-06-19 07:56:08 |
Message-ID: | Pine.LNX.3.96.980619105347.30838B-100000@server.iclub.techno-link.com |
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Thread: | |
Lists: | pgsql-sql |
The message says it all...
The syntax is recognized ( u've used the right one ) but foreign keys are
not implemented in this version.
U may wish to take a look at contrib/spi/refint*
under the Postgres source tree for implementation of referential integrity
Marin
-= Why do we need gates in a world without fences? =-
On Thu, 18 Jun 1998, Pich LY wrote:
> Hi there,
>
> I'm a french student at ESIGETEL, a school engineer specialized in
> Networks and Telecommunications.
>
> Now, I've some trouble with my end year project. We are 4 students
> working on an local Intranet using PostgreSQL as the database manager
> (and Apache as the HTTP server).
>
> The problem is insignifiant : how can you declare an attribute as a
> foreign key ?
> The tables we are focus on are :
> CLIENT FACTURATION
> ------ -----------
> (pkey) no_cli <--\ no_factu (pkey)
> client \-- no_cli (foreign key)
> adr_cli adr_livr
> ... ...
>
> The query (in SQL language) used to declare the "FACTURATION" table is :
> CREATE TABLE Facturation
> (
> no_factu INTEGER PRIMARY KEY,
> no_cli INTEGER REFERENCES Client,
> adr_livr VARCHAR(50),
> ...
> );
>
> We can also use :
> CREATE TABLE Facturation
> (
> no_factu INTEGER PRIMARY KEY,
> no_cli INTEGER,
> adr_livr VARCHAR(50),
> ...
> CONSTRAINT ct_factu REFERENCES (no_cli) FOREIGN KEY
> Client (no_cli)
> );
>
> But it doesn't seems to work ! "psql" gives us the following message :
> "NOTICE: CREATE TABLE/FOREIGN KEY clause ignored: not yet
> implemented"
> !!!
>
> What's the right syntaxe ???
>
> Thanks for the help...
>
> ;-)
>
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