CIMS 320 Project 4| Complete Solution

CMIS 320 Project 4
Examine the following relation and its attributes and answer the following questions.
Assume these are the values for “all time”. Assume girls with the same name are the same
person.




1) Is this relation in at least 1NF? Why or why not?
Yes, it is in 1NF. Each column only contains a single value and there are no duplicated rows in
the table.
2) What is the primary key of the initial relation (assume the values shown are the only
possible tuples for all time)? Remember that a primary key must be unique and not null.
The primary key is the name of the girl and game. When those two attributes are formed into a
tuple, they will obtain the unique constrains.
3) Describe the specific data anomalies that exist if we DELETE the tuple containing
Jacqueline.
Deleting Jacqueline will remove the specific category that was in place for her. Deleting the tuple
containing Jacqueline will eliminate
GAME: Visual Basic

CATEGORY: Prog. Language


4) Draw a functional dependency diagram for the initial relation. This diagram should
agree with the primary key you selected in above.