Re: table inheritance

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От Renaud Thonnart
Тема Re: table inheritance
Дата
Msg-id 3AFF826F.181F32BB@amwdb.u-strasbg.fr
обсуждение исходный текст
Ответ на table inheritance  (Renaud Thonnart <thonnart@amwdb.u-strasbg.fr>)
Список pgsql-general
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
>
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