This topic contains a solution. Click here to go to the answer
|
Author Question: Supertype/subtype relationships should be used when the instances of a subtype participate in no ... (Read 100 times) |
Did you know?
There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Did you know?
The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.