An attribute in a relation is a foreign key if the _______ key from another relation is used as an attribute in that relation .OptionsSubPrimaryCandidateSuper
Question
An attribute in a relation is a foreign key if the _______ key from another relation is used as an attribute in that relation . Options
- Sub
- Primary
- Candidate
- Super
Solution
An attribute in a relation is a foreign key if the primary key from another relation is used as an attribute in that relation.
Explanation:
- Foreign Key: A foreign key is an attribute (or a set of attributes) that creates a link between two tables. It refers to the primary key in another table.
- Primary Key: This is a unique identifier for a record in a table. When this primary key is referenced in another table, it becomes a foreign key there.
In summary, the primary key from one table is utilized as the foreign key in another table to establish a relationship between the two tables.
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