使用SQLite的目标C包装更新查询

嘿,我用的是 http://th30z.netsons.org/2008/11/objective-c-sqlite-wrapper/ 包装器。

我的代码是:

    - (IBAction)UpdateButtonPressed:(id)sender 
    {


        Sqlite *sqlite = [[Sqlite alloc] init];
        NSString *writableDBPath = [[NSBundle mainBundle]pathForResource:@"Money"ofType:@"sqlite"];
        if (![sqlite open:writableDBPath])
            return;


        NSArray *query = [sqlite executeQuery:@"UPDATE UserAccess SET Answer ='Positano';"];
            NSDictionary *dict = [query objectAtIndex:2];
            NSString *itemValue = [dict objectForKey:@"Answer"];
            NSLog(@"%@",itemValue);
}

答案是列名,用户访问表名。 列在表的第三位

我做错了什么?为什么会崩溃????