What does "PFK" mean? What is the difference between FK and PFK?
If you create a new Identifying relationship, Toad Data Modeler adds a copy of the Primary key from the Parent table to the child table as a Primary Foreign key - PFK (because the foreign key is a part of the primary key in child table).
If you create a new Non-Identifying relationship, Toad Data Modeler adds a copy of the Primary key to the child table as a Foreign key - FK (the foreign key is not a part of the primary key in the Child table).
