On 5 Dec 2002 at 9:31, Stephan Szabo wrote:
> When we talk about ALTER TABLE ADD FOREIGN KEY we're being imprecise, so
> I think that might be why we're talking past each other here.
>
> Technically the syntax in question is:
> ALTER TABLE <table> ADD <table constraint definition>
> where CONSTRAINT <name> is an optional leading clause in a table
> constraint definition. ADD FOREIGN KEY is a shorthand for a foreign key
> constraint (technically unnamed).
Understood.
What about allowing a named foreign key? I haven't checked the RFCs
> Thus you can also say things like:
> ALTER TABLE <table> ADD CONSTRAINT blah CHECK (foo!=0);
> to make a named check constraint.
Understood.
--
Dan Langille : http://www.langille.org/