On Sun, Jan 26, 2003 at 12:29:12 +1000, jack <[EMAIL PROTECTED]> wrote: > > I try use uique instead of primary key. And it works, it allows null values. > Is there any other difference between primary key and unique?
I believe that the primary key is the default key for foreign key references into a table. ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/users-lounge/docs/faq.html
