数据未插入Sqlite目标c

Question

我想在数据库表中插入一些值。但它在插入时显示（NULL）

我正在使用此代码

http://pastie.org/10929618

我使用此链接作为参考   http://www.tutorialspoint.com/ios/ios_sqlite_database.htm

//插入方法

-(void)SaveAction{
    BOOL success = NO;
    NSString *alertString = @"Data Insertion failed";

        success = [[DBManager getSharedInstance]saveData:@"100" username:@"byname" type:@"one2one" user_to:@"144" user_from:@"145" timestamp:@"42015"];

    if (success == NO) {
        UIAlertView *alert = [[UIAlertView alloc]initWithTitle:
                              alertString message:nil
                                                      delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alert show];
    }
}

Answer 1

您缺少列值。

// you are passing the value use below method but dnt have "message1" column value
success = [[DBManager getSharedInstance]saveData:@"100" username:@"byname" type:@"one2one" user_to:@"144" user_from:@"145" timestamp:@"42015"];
// compare the below query
NSString *insertSQL = [NSString stringWithFormat:@"insert into chatDetail (chat_id,username, type, message1,user_to,user_from,timestamp) values  (\"%ld\",\"%@\", \"%@\", \"%@\",\"%@\",\"%@\")",(long)[chat_id integerValue], username, type, user_to,user_from,timestamp];