Jerry Stuckle wrote:
> myname@yahoo.it wrote:
>
>>Hi,
>>do you know how can I declare a key on more tables?
>>
>>For example, if I have the table TABLE1 and the table TABLE2, every one
>>with a field called key, how can OI declare in mysql that the key is
>>composed of TABLE1.key AND TABLE2.key?
>>
>>Thanks a lot
>>Marco Righi
>>
>
>
> Macro,
>
> You can't. The purpose of a key is to uniquely identify a row in a
> single table.
>

s/uniquely//