Question

What do you mean by coredata.​

Answer 1

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Core Data works best for persisting complex object graphs locally.

If the relationships between entities aren't complex, then Core Data would bring unnecessary programing overhead.

If it's not an “object graph” (e.g. images), then Core Data does very little apart from safekeeping the file.

Answer 2

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What do you mean by coredata?

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Core Data Manages an Object Graph

To understand what that means, you need to know what an object graph is. An object graph is nothing more than a collection of objects that are connected with one another. The Core Data framework takes care of managing the life cycle of the objects in the object graph.

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