Обсуждение: table inheritance

Hi!

Could someone give me a easy example of creating and using table
inheritance?

Thank you!

Sincerely,
Renaud THONNART

Am Sonntag, 13. Mai 2001 15:28 schrieb Renaud Thonnart:
> Hi!
>
> Could someone give me a easy example of creating and using table
> inheritance?

lokk in the tutorial shipped with postgres:
Chapter 6. Advanced Postgres SQL Features (advanced.htm)

-- from postgres tutorial ---
Inheritance

Let's create two classes. The capitals class contains state capitals which
are also cities. Naturally, the capitals class should inherit from cities.

CREATE TABLE cities (
    name            text,
    population      float,
    altitude        int     -- (in ft)
);

CREATE TABLE capitals (
    state           char(2)
) INHERITS (cities);

[.....]


janning


--
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fax 0211-6015917
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Thanks for your help Janning !
Renaud THONNART


Janning Vygen wrote:

> Am Sonntag, 13. Mai 2001 15:28 schrieb Renaud Thonnart:
> > Hi!
> >
> > Could someone give me a easy example of creating and using table
> > inheritance?
>
> lokk in the tutorial shipped with postgres:
> Chapter 6. Advanced Postgres SQL Features (advanced.htm)
>
> -- from postgres tutorial ---
> Inheritance
>
> Let's create two classes. The capitals class contains state capitals which
> are also cities. Naturally, the capitals class should inherit from cities.
>
> CREATE TABLE cities (
>     name            text,
>     population      float,
>     altitude        int     -- (in ft)
> );
>
> CREATE TABLE capitals (
>     state           char(2)
> ) INHERITS (cities);
>
> [.....]
>
> janning
>
> --
> Planwerk 6 /websolutions
> Herzogstraße 86
> 40215 Düsseldorf
>
> fon 0211-6015919
> fax 0211-6015917
> http://www.planwerk6.de
>
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