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5 . 2 The Database Approach An employer wants to use the worker job title as a primary key in the company's database. Why is
The Database Approach
An employer wants to use the worker job title as a primary key in the company's database. Why is this piece of information better as a secondary key?
The job title would change too often in the database.
The job title is not easily searchable by users.
The job title is not a unique identifier of employee.
The job title may be too long to fit in the key field.
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