Re: On delete cascade!

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От Stephan Szabo
Тема Re: On delete cascade!
Дата
Msg-id 20020114155126.J27862-100000@megazone23.bigpanda.com
обсуждение исходный текст
Ответ на On delete cascade!  (pocm@rnl.ist.utl.pt (Paulo J. Matos))
Список pgsql-sql
On 14 Jan 2002, Paulo J. Matos wrote:

> 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);
>
>
> How can I change this to be compatible with postgresql?

We don't want the comma between socio and the ON DELETE CASCADE (which as
far as I can see isn't allowed in the SQL92 spec either, but I may be
missing it).



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