Re: doubt

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От Bruno Wolff III
Тема Re: doubt
Дата
Msg-id 20040614175453.GA12185@wolff.to
обсуждение исходный текст
Ответ на doubt  (sathish <sathish@ceedees.com>)
Список pgsql-general
On Fri, Jun 11, 2004 at 15:12:36 +0530,
  sathish <sathish@ceedees.com> wrote:
> dear groups,
>    i have a doubt in sql,
>    i have a table staff_skills in which i have set a table level
> constraint to create a primary key of two fields .
>    so 'name' and 'skill' combinedly forms a primary key.
>    now the issue is in another table i have only 'name' field and i
> want to create a foreign key constraint which refers the staff_skills
> table's 'name' field only.
>   staff_skills (table) - name,skill,ability  (columns)   ---  primary
> key(name,skill)
>   staff_xxxx (table) - name,x,y,z            (columns)  ---   foreign
> key(name) references staff_skills(name).
>   how to do the above?

This reference is the wrong way. The staff_skills table's name column
should reference name in the staff_xxxx table.

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