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Danli Danli
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7 years ago
Which of the following best describes the effect of enforcing referential integrity on updates?
A) You cannot change a primary key that has related records in a foreign key table
B) You cannot enter data into a foreign key table unless it is related to an existing record in the primary key table
C) You cannot remove a record from the primary key table if it has related records in the foreign key table
D) All of the above
Textbook 
Hands-On Database

Hands-On Database


Edition: 2nd
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Computer Science Major @ The University of Texas at Austin
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DylanoDylano
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7 years ago
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Danli Author
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7 years ago
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Computer Science Major @ The University of Texas at Austin
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