Re: triggers

thanks Colin, that worked just great!! :)

----- Original Message -----
From: "Colin Gillespie" <C.Gillespie@newcastle.ac.uk>
To: "Iandé Coutinho" <iande@br.inter.net>; <pgsql-novice@postgresql.org>
Sent: Friday, April 16, 2004 10:51 AM
Subject: RE: [NOVICE] triggers


Hi Iande,

Try this

DROP TABLE t1 CASCADE;
CREATE TABLE t1
(
id serial,
branch integer NOT NULL,
uniqueid integer
);

DROP FUNCTION insert_uniqueid();
CREATE FUNCTION insert_uniqueid() RETURNS trigger AS'
BEGIN
NEW.uniqueid:= NEW.id||NEW.branch;
RETURN NEW;
END;
' LANGUAGE 'plpgsql';

CREATE TRIGGER insert_uniqueid BEFORE INSERT
ON t1 FOR EACH ROW EXECUTE
PROCEDURE insert_uniqueid();

Colin


-----Original Message-----
From: pgsql-novice-owner@postgresql.org on behalf of Iandé Coutinho
Sent: Fri 4/16/2004 2:17 PM
To: pgsql-novice@postgresql.org
Subject: Fw: [NOVICE] triggers

Anyone??
----- Original Message -----
From: "Iandé Coutinho" <iande@br.inter.net>
To: <pgsql-novice@postgresql.org>
Sent: Thursday, April 15, 2004 3:49 PM
Subject: [NOVICE] triggers


Afternoon guys, I would be very gratefull if anyone could help me on this
one. I´ve tried looking for examples on it, i know it´s simple, but i can´t
get one, so here goes. I need to create a trigger(after insert), preferebly
in plpgsql, as I have already created the lang using createlang, that, takes
value from 2 columns of the record it´s inserting, and  concatenate together
and insert it into a 3rd column,
for example:

I have a table:

employee

id  | branch | name | uniqueId
---|--------|-------|---------

on insert into employee(id,branch,name) values(1,1543,"iande");

the trigger would get both id and branch valeus and insert on uniqueId
so,

select * from employee;

id  | branch | name | uniqueId
-----------------------------
1  | 1543    | iande | 15431


thanks in advance;

Iandé






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