In a database table, the Blank______ field is a unique identifier for each record.Multiple choice question.primary keyforeign key
Question
In a database table, the Blank______ field is a unique identifier for each record.
Multiple choice question:
- primary key
- foreign key
Solution
The correct answer is primary key.
Explanation:
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Definition: A primary key is a specific choice of a minimal set of attributes that uniquely identify a record in a database table. Each value in the primary key must be unique across the table.
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Foreign Key: In contrast, a foreign key is a field (or a collection of fields) in one table that refers to the primary key in another table. This is used to establish a link between the two tables.
In summary, the primary key serves as a unique identifier for each record, ensuring that no two records can have the same key value within that table.
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