Which of the following can be addressed by enforcing a referential integrity constraint? - Study24x7
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DatabaseManagementSystems
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Which of the following can be addressed by enforcing a referential integrity constraint?

A

 All phone numbers must include the area code

B

Certain fields 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

When entering an order quantity, the user must input a number and not some text

Databases IIT-JEE B.SC/IT
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