I want to insert only those records in core data in iPhone which are not already present in the sqllite table. In other words, I want to insert distinct records in my core data table. My code of insertion is
for(NSInteger j=0;j<[items count];j++){
Story *story=(Story *)[NSEntityDescription insertNewObjectForEntityForName:@"Story" inManagedObjectContext:managedObjectContext];
[story setTitle:[[items objectAtIndex:j] objectForKey:@"title"]];
[story setDate:[[items objectAtIndex:j] objectForKey:@"date"]];
}
Tell me the way to insert only distinct records in this.
Have a look at this page, the section 'Implementing Find-or-Create Efficiently' gives detailed info on how to implement an update/insert mechanism.