I see a foreign key relationship, in that the reference table (foreign key table) is null but it has foreign value key. So what type of constraint it is?
EX:
ALTER TABLE XXXXX.XXXXXXXX
ADD FOREIGN KEY (ABCDEF)
REFERENCES null (null);
DB: Oracle.
jacob deiter wrote:I see a foreign key relationship, in that the reference table (foreign key table) is null but it has foreign value key. So what type of constraint it is?
Are you really sure? Because that makes no sense at all. Why would you add a FK if you don't define a reference table?