iphone - Problem with xCode programming SQL Table -

nsstring *sql = [nsstring stringwithformat:@"create table if not exists '%@' ('%@' text primary key, '%@' text);", tablename, field1, field2]; 

i faced quite lot of problems line of programming, can me solve problem? i'm new xcode. thanks! :)

try without single quotes

sstring *sql = [nsstring stringwithformat:@"create table if not exists %@ (%@ text primary key, %@ text);", tablename, field1, field2];