Re: DUDA GRANDISIMA TRIGGER AYUDA GRACIAS

On Thu, Aug 18, 2005 at 11:09:46PM +0000, P(at)blo Villad@ wrote:

> QUE PUEDO HACER .

Leer el hermoso manual:

http://www.postgresql.org/docs/8.0/static/plpgsql-trigger.html

When a PL/pgSQL function is called as a trigger, several special variables are
created automatically in the top-level block. They are:

NEW
Data type RECORD; variable holding the new database row for INSERT/UPDATE
operations in row-level triggers. This variable is NULL in statement-level
triggers.

OLD
Data type RECORD; variable holding the old database row for UPDATE/DELETE
operations in row-level triggers. This variable is NULL in statement-level
triggers.

--
Alvaro Herrera (<alvherre[a]alvh.no-ip.org>)
"Nadie esta tan esclavizado como el que se cree libre no siendolo" (Goethe)