Question

fetchRequest.predicate = [NSPredicate predicateWithFormat:@"identifer==1_12"];

gives me :

Unable to parse the format string "identifier==1_12"'

I have tried using MATCHES, LIKE, =, with spaces ==, without spaces etc. Somehow I feel the underscore is some kind of a reserved sign.

Any help?

Answer 1

If you want to compare with the string “1_12”, you have to enclose it in single quotes:

[NSPredicate predicateWithFormat:@"identifer == '1_12'"]

Alternatively:

[NSPredicate predicateWithFormat:@"identifer == %@", @"1_12"]