Re: Calculated update

From: Bret Stern <bret_stern(at)machinemanagement(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: Calculated update
Date: 2012-03-13 01:11:34
Message-ID: 1331601094.2167.32.camel@fedora13
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On Mon, 2012-03-12 at 17:39 -0700, Bosco Rama wrote:
> Bret Stern wrote:
> >
> > trying to update a varchar numeric string column
> > by converting it to int, adding a numeric value and insert it back
> > as a varchar
> >
> > Having trouble with cast
>
> I assume you are doing an update as opposed to an insert. You use
> both above (and both numeric and int as well). Anyway, try:
>
> update tbl set col = (col::int + 1);
>
> or some variation thereof. That should do the trick.
>
> Bosco.

update open_orderheader
set order_id = (order_id::int + 3000)
where module_id='aggregate'

worked as advertised.
thanks for the help guys.

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