c++ connect to online database - c++

Question

I'm trying to figure out how to connect to an online database with c++. I've tried to google but I can only find ways to connect to the localhost.
The code I have is as following:
/* Standard C++ includes */
#include <stdlib.h>
#include <iostream>
/*
Include directly the different
headers from cppconn/ and mysql_driver.h + mysql_util.h
(and mysql_connection.h). This will reduce your build time!
*/
#include "mysql_connection.h"
#include <cppconn/driver.h>
#include <cppconn/exception.h>
#include <cppconn/resultset.h>
#include <cppconn/statement.h>
using namespace std;
int main(void)
{
cout << endl;
cout << "Running 'SELECT 'Hello World!' 'AS _message'..." << endl;
try {
sql::Driver *driver;
sql::Connection *con;
sql::Statement *stmt;
sql::ResultSet *res;
// Create a connection
driver = get_driver_instance();
con = driver->connect("tcp://127.0.0.1:3306", "root", "root");
// Connect to the MySQL test database
con->setSchema("test");
stmt = con->createStatement();
res = stmt->executeQuery("SELECT 'Hello World!'"); // replace with your statement
while (res->next()) {
cout << "\t... MySQL replies: ";
// Access column data by alias or column name
cout << res->getString("_message") << endl;
cout << "\t... MySQL says it again: ";
// Access column fata by numeric offset, 1 is the first column
cout << res->getString(1) << endl;
}
delete res;
delete stmt;
delete con;
}
catch (sql::SQLException &e) {
cout << "# ERR: SQLException in " << __FILE__;
cout << "(" << __FUNCTION__ << ") on line " << __LINE__ << endl;
cout << "# ERR: " << e.what();
cout << " (MySQL error code: " << e.getErrorCode();
cout << ", SQLState: " << e.getSQLState() << " )" << endl;
}
cout << endl;
return EXIT_SUCCESS;
}
The line con = driver->connect("tcp://127.0.0.1:3306", "root", "root"); is what connects to a mysql database on my pc (I think??). How do I connect to an online mysql database instead? I have a free webhost site where the database is at and I'd like to throw queries at it. Do I need a completely different library or something?