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What is a foreign key? A foreign key is a primary key of a relation which is an attribute in another relation A foreign key
What is a foreign key?
A foreign key is a primary key of a relation which is an attribute in another relation
A foreign key is a superkey of a relation which is an attribute in more than one other relations
A foreign key is an attribute of a relation that is a primary key of another relation
A foreign key is the primary key of a relation that does not occur anywhere else in the schema
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Practical Database Programming With Visual Basic.NET
Authors: Ying Bai
1st Edition
0521712351, 978-0521712354
