Re: Create Table

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От Mike Mascari
Тема Re: Create Table
Дата
Msg-id 3BF127DA.B63948BD@mascari.com
обсуждение исходный текст
Ответ на Create Table  (Marcelo Pereira <gandalf@sum.desktop.com.br>)
Список pgsql-general
Marcelo Pereira wrote:
>
> Hi All,
>
> I know it is a really single question, but I am without any
> reference... Does anyone can help me ?
>
> I have to tables (example): 'seller' and 'sells'
>
> seller:
>
> CodSeller | NameSeller
> ----------------------
>    1435   | Mark
>    2486   | Tim
>
> Sells:
>
> CodSell | CodSeller | Description
> ---------------------------------
>   001   |   1435    | xya sfaks
>   002   |   2486    | sdf sdfsd
>
> So, I can create seller like:
>
> create table seller (codseller integer, nameseller char(35));
>
> My question is how to create 'Sells' and link it with 'Seller', can I
> force delete cascades with this relation ?

How about:

create table seller (
codseller integer unique not null,
nameseller varchar(35) not null
);

create table sells (
codsell integer unique not null,
codseller integer references seller(codseller) on delete cascade,
description varchar(35) not null);

Hope that helps,

Mike Mascari
mascarm@mascari.com

>
> Thanks in Advance,
>
> See ya,
>
> Marcelo

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