Re: INSERT ON DUPLICATE KEY UPDATE

On Fri, Jun 18, 2004 at 08:36:21PM +0000, Eduardo Pérez Ureta wrote:
>
> On 2004-06-18 18:02:18 UTC, Richard Huxton wrote:
> > Out of curiosity, why don't you know whether you're inserting or
> > updating? It always worries me when I don't know what my application is
> > doing.
>
> This is the example:
>
> I'm downloading a list of products from the web and they already have a
> product_id (that's the primary key), in my table I have many fields that
> I use myself like comments, stock, ... But when downloading the list I
> only have the product_id, the product name, the price and the remote
> stock. So I must insert data like the remote stock without removing any
> of my data and leaving all the other columns unmodified.
This smells of that you shouldn't use the product_id as your
primary key (I know, this won't solve your problem as the
insert will still fail since most likely you'll want
product_id to be unique regardless of primary-key-ness).

Just a thought.

Karsten
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