[Answered] How many tables in the relational schema mapped from the Eaglerun Trucking Dispatcher ER diagram ...

This topic contains a solution. Click here to go to the answer

Author Question: How many tables in the relational schema mapped from the Eaglerun Trucking Dispatcher ER diagram ... (Read 51 times)

faduma

Hero Member
Posts: 528

on: Jul 7, 2018

How many tables in the relational schema mapped from the Eaglerun Trucking Dispatcher ER diagram will have composite primary keys?

A) 0
B) 1
C) 2
D) 3

Question 2

The following attribute can contain more than one value for each entity instance.

A) Unique attribute
B) Composite attribute
C) Multivalued attribute
D) Derived attribute

Need homework help now?

Ask unlimited questions for free

Ask a Question

Marked as best answer by a Subject Expert

jaaaaaaa

Sr. Member
Posts: 341

Reply #1 on: Jul 7, 2018

Answer to Question 1

B

Answer to Question 2

C

faduma

Hero Member
Posts: 528

Reply #2 on: Jul 7, 2018

jaaaaaaa

Sr. Member
Posts: 341

Reply #3 on: Jul 7, 2018

Happy to Help

« previous next »

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.