title: fetch core data and save it to nsarray
body: <p>i think this is not tought but i'm facing problem with these.
  i am fecthing core date and after fetching it i'm trying to save it into nsarray.
  but every time last data from database is saving into array. i want every data inserted into databases.
  suppose i have an attribute name account_name
  i added A,B,C,X,Y,Z. in this code i'm just getting last value Z in my array. :(
  but when i print it then i'm getting all data..
  any solution ?</p>
  
  <pre><code>NSArray *fetchedObjects; 
  AppDelegate *delegate = [UIApplication sharedApplication].delegate;
  NSManagedObjectContext *context = [delegate managedObjectContext];
  NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
  NSEntityDescription *entity = [NSEntityDescription entityForName:@"Chart_of_Accounting" inManagedObjectContext:context];
  [fetchRequest setEntity:entity];
  
  NSError *error;
  fetchedObjects = [context executeFetchRequest:fetchRequest error:&amp;error];
  
  for (NSManagedObject *obj in fetchedObjects) {
      debitArray = [NSMutableArray arrayWithObject:[obj valueForKey:@"account_name"]];
      creditArray = [NSMutableArray arrayWithObject:[obj valueForKey:@"account_name"]];
      NSLog(@"Account Name: %@", [obj valueForKey:@"account_name"]);
  }
  </code></pre>