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wrote...
Posts: 154
2 months ago
Which of the following is false regarding a well-structured relational database?

• A foreign key cannot be null.

• A primary key cannot be null.

• Every column in a row must be single valued.

• All nonkey attributes in a table must describe a characteristic of the object identified by the primary key.
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Accounting Information Systems
Edition: 14th
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wrote...
Posts: 178
2 months ago
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A foreign key cannot be null.
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wrote...
2 months ago
Thanks
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