Which of the following can be addressed by enforcing a referential integrity constraint?

Question

TuteeHUB · Accepted Answer

then entering an order quantity, the user must input a number and not some text (i.e., 12 rather than â€˜a dozenâ€™)

TuteeHUB · Answer

all phone numbers must include the area code

TuteeHUB · Answer

certain ï¬elds are required (such as the email address, or phone number) before the record is accepted

TuteeHUB · Answer

information on the customer must be known before anything can be sold to that customer

TuteeHUB · Answer

then entering an order quantity, the user must input a number and not some text (i.e., 12 rather than â€˜a dozenâ€™)

1.	Which of the following can be addressed by enforcing a referential integrity constraint?
A.	all phone numbers must include the area code
B.	certain ï¬elds are required (such as the email address, or phone number) before the record is accepted
C.	information on the customer must be known before anything can be sold to that customer
D.	then entering an order quantity, the user must input a number and not some text (i.e., 12 rather than â€˜a dozenâ€™)
Answer» D. then entering an order quantity, the user must input a number and not some text (i.e., 12 rather than â€˜a dozenâ€™)

Discussion