On Mon, Jan 14, 2002 at 08:31:36PM +0000, Paulo J. Matos wrote:
> Hi all,
>
> On weak entities I've used ON DELETE CASCADE as mentioned in
> "Databases Management Systems" by Raghu Ramakrishnan. But I get:
> psql:tables.sql:43: ERROR: parser: parse error at or near "ON"
>
> on tables like the following:
>
> CREATE TABLE socio_ilumindado (
> cognome varchar,
> id integer,
> nome varchar,
> alcunha varchar,
> data_filiacao date,
> PRIMARY KEY(id),
> FOREIGN KEY(id, nome, alcunha, data_filiacao) REFERENCES socio,
> ON DELETE CASCADE);
Ola Paulo,
You need to take a look at the PostgreSQL documentation as well. Just
reading your college databases book won't cut it most of the time.
PostgreSQL has excellent documentation, especially the reference manual.
Take a look at it. So far both of your questions could have been answered
by taking a quick glance at the docs.
http://www.postgresql.org/idocs/
-Roberto
--
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