I'm adding a table and subclass table to my DB. (Subclass table = table where the primary key joins to the primary key of another table, to give extra row information to some subset of the rows ...

For Higher Computing Science, revise the use of primary and foreign keys and the difference between flat file and relational databases.

I have a foreign key constraint that I created to reference the primary key of another table:constraint geneassay_fk foreign key (geneassay) references ...

For everyone normalizing their designs, just remember: There ain't no such thing as a partial foreign key. When a project pretends that partial foreign keys are a valid concept, the end result is a ...