On Fri, Nov 21, 2003 at 14:35:54 -0600,
Thomas LeBlanc <thomasatiem(at)hotmail(dot)com> wrote:
> I am able to enter a null in a foreign key field in one table(table2)
> without the foreign key relationship (table1.t1_id) validating the value.
> Why is this?
That is how foreign keys work. If you don't want null values for the
foreign key, use a not null constraint in addition to the foreign
key constraint.
You shouldn't be using null key values in the referenced table.