On Thu, Feb 28, 2008 at 5:47 AM, Fidel Viegas <fidel.viegas@...> wrote:

> Hmm.... ok. We are constantly learning new things. But, to be honest
> with you, this is the first time I hear this. All the literature I
> have read so far says the exact same thing: that unions are used to
> draw data from two or more tables. And I have never come across an
> example that shows that. So, if it is not asking too much, could you
> please provide me with an example with a case where this would happen?

Never mind. I keep forgetting to check your book.

The example I have seen is something I end up using in the client
side. And yes, you are right. Definitely, this is much more elegant
and pratical.

Thanks once again.

Fidel.