If two tables need to be joined, and both tables have the same two primary keys, how many join lines are needed?

In a company, you can most likely expect to:

A) use tables made by the IT department. B) use tables made by the people that work for you. C) have access to all tables of the company. D) make your own databases.

Using ________ simplifies adding complex mathematical formulas to a cell

Fill in the blank(s) with correct word