Alias "all fields"?

Hi there,

I guess I am demanding too much.... But it would be cool to have some
kind of alias for "all fields".

What I mean is this here:

Instead of this:

        SELECT * FROM gdp WHERE y1970 NOT NULL AND y1971 NOT NULL
AND .... y2005 NOT NULL

I would like to have this:

       SELECT * FROM gdp WHERE all-fields NOT NULL

This is, because my tables have different - and a different number of
fields.

In principal, I actually just want to have the number of fields which
are NOT NULL...

Thanks for any advice.

Stef