On Fri, 24 Jan 2003, jack wrote: > Is that possible to have a two columns primary key on a table with null > value on second column?
No, because primary key implies not null on all columns involved (technically I think it's that a non-deferrable primary key implies not null on all columns involved, but we don't support deferrable ones) ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]