Question: Which statement is CORRECT? A relation cannot have more than 1 foreign key. Every relation must have a foreign key. The Boyce Codd normal form

Which statement is CORRECT?

A relation cannot have more than 1 foreign key.

Every relation must have a foreign key.

The Boyce Codd normal form is more strict than the third normal form.

A relation is in 2NF if it is in 1NF and every prime attribute type A in R is fully functionally dependent on any key of R.

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