Re: Attribute a value to a record

From: "Albe Laurenz" <laurenz(dot)albe(at)wien(dot)gv(dot)at>
To: "Florent THOMAS *EXTERN*" <mailinglist(at)tdeo(dot)fr>, "postgesql general" <pgsql-general(at)postgresql(dot)org>
Subject: Re: Attribute a value to a record
Date: 2010-02-03 13:13:20
Message-ID: D960CB61B694CF459DCFB4B0128514C203938147@exadv11.host.magwien.gv.at
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Florent THOMAS wrote:
> I understood that in the Loop you can change the values of a
> variable! Exactly what I needed.
> but unfortunately all of this seems to be temporary.
> Consequently, the record in the table won't be updated by the
> changes we made on the local variable even if it points to a
> record in the table.
> I forgot the aspect of the cursor that is temporary.

I get you now - you expected that the underlying table would
be updated if you change a variable in PL/pgSQL.

I don't think that you need dynamic SQL for that -
all it takes is an UPDATE statement in your loop, like

UPDATE XXX SET XXX.myfield = mynewvalue
WHERE XXX.pkey = ventilation_local.pkey;

(using the names from your sample)

Yours,
Laurenz Albe

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