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Which statement is correct?

Flat files use foreign keys to uniquely identify tables.

Flat files use foreign keys to secure data.

A foreign key is a primary key in another table.

A foreign key uniquely identifies a record in a table.

User Grzegorz W
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1 Answer

5 votes

Answer:

A foreign key is a primary key in another table.

Step-by-step explanation:

User Saurabh Rajpal
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