El mié, 22-10-2008 a las 15:01 -0500, Ma. Cristina Peña C. escribió:
> I want to use a function in to a trigger
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> This is my
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> CREATE FUNCTION "subradio"(integer) RETURNS integer AS 'select
> cast(count (claveubica) as integer ) from asradios where ubicacion
> =0;' LANGUAGE 'sql';
>
>
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> And my ttrigger is
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> CREATE TRIGGER validaradios AFTER DELETE ON subestacion FOR EACH ROW
> EXECUTE PROCEDURE subradio(0);
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>
>
> But I got an error
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> ERROR: CreateTrigger: function subradio() does not exist
>
>
>
> What can I do??
write your function in plpgsql
http://www.postgresql.org/docs/8.3/interactive/plpgsql-trigger.html
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> cid:image002.jpg@01C8F24F.E2D90230
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> Ing. María Cristina Peña C.
>
> Analista Programador
>
>
>
> Sensa Control Digital S.A. de C.V.
>
> Dir. Av. Bravo #93 Ote.
>
> Col. Centro.
> Torreón Coah.
>
>
>
> Tel. Directo: (871) 747 01 04
>
> Conmutador: (871) 747 01 01
>
> Tel. Fax: (871) 747 01 90
>
> Correo Electrónico: mpena@sensacd.com.mx
>
>
>
>
