Can't able to delete data in coredata in iphone?

Deleting the object ( device ) from the context will not cause it to automatically disappear off the end of the previous result-set ( fetchedObjects ). The array that you fetch will contain whatever objects existed at the time it was fetched. It does not update itself automatically.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.