Discussion Post I
Create a discussion thread (with your name) and answer the following question(s):
How can the key and foreign key constraints be enforced by the DBMS? Is the enforcement technique you suggest difficult to implement? Can the constraint checks be executed in an efficient manner when updates are applied to the database?
Discussion Post II
Create a discussion thread (with your name) and answer the following question(s):
What is the FUNCTION operation? For what is it used? And Present a practical example/ scenario.
The response must include a reference list. Using Times New Roman 12 pnt font, double-space, one-inch margins, and APA style of writing and citations.