Representing a Unary One-To-Many Relationship in a Relational Database ____

question 2

Multiple Choice

Representing a unary one-to-many relationship in a relational database ____.

• A) requires the creation of an additional relation
• B) requires adding a new column, the domain of values of which is the same as the relation's primary key
• C) requires adding a new column, the domain of values of which is the same as the primary key of another relation in the database
• D) requires modifying the primary key of the relation
• E) requires replacing the primary key of the relation with an alternate key

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