Elance Exams Answers PDF file

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Download PDF file of elance Zoho Creator Exam Answers

Automatic migration between Core Data model versions is sufficient for many cases. Which one of the following cases would require additional migration code?

A relationship has changed from a 'to-one' to a 'to-many' relationship
A new attribute has been added to an Entity
An optional attribute is made required
A mandatory attribute is made optional
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