The JustLee DB contains a table called PROMOTION. It does not have any of the relationships to other tables we discussed last week. It is not a one-to-one, one-to-many, or many-to-many relationship. There is no crowfoot on the ER diagram related to this table. However, there IS a relationship depicted in the ER diagram between the PROMOTION and the BOOKS tables. What kind of relationships do you think it is? Please check the structure of these two tables and the data contained in them in your ApEx schema running SQL commands using the clauses you have learned this week. Which commands did you use and what results did you see?

FIGURE 1-5 JustLee Books's table structures after normalization