Problem
Provide substantive responses to the following items:
(a) What are three advantages to using SQL?
(b) What are challenges to using SQL?
(c) By using an example, explain how SQL provides the ability to use set operations.
(d) By using an example, describe an advanced function of SQL.
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.