Question: what is the refactoring pattern used to remove a primary key and introduce a new primary key? Example: Employee( EmpId, Name, Phone, EName) where EmpId

what is the refactoring pattern used to remove a primary key and introduce a new primary key?

Example: Employee( EmpId, Name, Phone, EName)

where EmpId is the primary key and now I want to change the primary key to Phone. What is the refactoring pattern used and how?

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