Hi Martijn,

>
> I would rather say there's nothing wrong at all with compound

primary keys,

> but that using a column with a MEANING (like artikle codes, part

numbers

What about timestamps? Such column has meaning, but I do not see any
reason, why not to use it in compound PK. Or am I wrong?

> etc) should be avoided. I'd rather use an artificial key ...
>
> Using compound pks is fine and should be used.
>

Jan