What are the different delete rules that a relationship can have? Which one takes ownership?
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Answer Posted / Saurabh Agarwal
"Cascade", "Nullify", and "Deny" are the three delete rules for relationships in Core Data. "Cascade" deletes the related objects when the parent object is deleted. "Nullify" sets the relationship to nil for the related objects when the parent object is deleted. "Deny" prevents the parent object from being deleted if it has related objects. Among these, "Cascade" takes ownership of the related objects.
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