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Core Data is an object persistence framework for iOS that essentially wraps around SQL. It looks like it’s losing data when the external storage option is enabled.



What does external storage refer to here? I don't think iOS has extendable storage does it? So is it eg. iCloud?


It appears to be "external" to the sqllite database

https://forums.raywenderlich.com/t/where-is-allows-external-...


If you have a large amount of data to store, instead of embedding it in-line inside the database itself you’d store it in a separate file.




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