Re: help with function

From: "Daniel Caune" <daniel(dot)caune(at)ubisoft(dot)com>
To: "lacou" <lacouf(at)gmail(dot)com>, <pgsql-sql(at)postgresql(dot)org>
Subject: Re: help with function
Date: 2006-03-16 15:49:10
Message-ID: 1E293D3FF63A3740B10AD5AAD88535D201CAB61B@UBIMAIL1.ubisoft.org
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> Hello,
>
> I have 2 tables where each table has a column named "comments" and the
> tables are related as a one to many. I want to concatenate all the
> comments of the many side to the one side so I wrote the following
> plpgsql function to do so.
>
> <pre>
> CREATE OR REPLACE FUNCTION fixcomments()
> RETURNS int4 AS
> $BODY$
> DECLARE
> mviews RECORD;
> i int4;
> BEGIN
>
> FOR mviews IN SELECT * FROM saleorder WHERE comments is not null
> and comments <> '' LOOP
>
> -- Now "mviews" has one record from saleorder
>
> EXECUTE 'UPDATE sale SET comments = ' ||
> quote_ident(sale.comments) || quote_ident(mviews.comments)
> || ' WHERE sale.id = ' || quote_ident(mviews.sale_id);

EXECUTE 'UPDATE sale SET comments = ''' || quote_ident(sale.comments ||
mviews.comment) || ''' WHERE sale.id = ''' ||
quote_ident(mviews.sale_id) || '''';

Does that help?

> i := i + 1;
> END LOOP;
>
> RETURN i;
> END;
> $BODY$
> LANGUAGE 'plpgsql' VOLATILE;
>
> </pre>
>
> I have the following error when I run this code:
>
> <pre>
> ERROR: missing FROM-clause entry for table "sale"
> CONTEXT: SQL statement "SELECT 'UPDATE sale SET comments = ' ||
> quote_ident(sale.comments) || quote_ident( $1 ) || ' WHERE sale.id = '
> || quote_ident( $2 )"
> PL/pgSQL function "fixcomments" line 11 at execute statement
> </pre>
>
> Doesn anybody know what I am doing wrong here ?
>
> Lacou.
>
>
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broadcast)---------------------------
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