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From: Josh Berkus <josh@agliodbs.com>
Organization: Aglio Database Solutions
To: Peter Atkins <peter.atkins@NXCD.com>, pgsql-sql@postgresql.org
Subject: Re: Passing array to PL/SQL and looping
Date: Thu, 26 Sep 2002 18:20:08 -0700
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Peter,

> I'm a newbie to PL/SQL and need help badly. I'm trying to pass my array of
> id's to the function and then loop through until the array is empty. I kn=
ow
> there must be atleast five things I'm doing wrong.

Simplified example:

CREATE FUNCTION test_array (
	INT[] )=20
RETURNS INT AS '
DECLARE id_array ALIAS for $1;
	count_it INT;
BEGIN
count_it :=3D 1;
WHILE id_array[count_it] LOOP
	count_it :=3D count_it + 1;
END LOOP;
RETURN (count_it - 1);
END;'
LANGUAGE 'plpgsql';

returns the number of elements in the supplied array.

--=20
Josh Berkus
josh@agliodbs.com
Aglio Database Solutions
San Francisco