Code:

#include "stdafx.h"
#include <tchar.h>

#using <mscorlib.dll>
#using <System.dll>
#using <System.Data.dll>


using namespace System;
using namespace System::Data;
using namespace System::Data::OleDb;

int _tmain(void)
{
    OleDbConnection *cnPubs = new OleDbConnection();
    cnPubs->ConnectionString = S"data source=(local);Provider=SQLOLEDB;integrated security=true;initial catalog=Pubs";
    
    //otvaram konekciju na server
    try
    {
        cnPubs->Open();
        Console::WriteLine("Connected to database successefully!");
    }
    catch(System::Data::OleDb::OleDbException *Xcp)
    {
        Console::WriteLine("Error occurred: ");
        Console::WriteLine(Xcp->Message);
    }
    
    //zatvaram konekciju na server
    if( cnPubs->State != ConnectionState::Closed)
        cnPubs->Close();
    Console::WriteLine("The database connection is now closed!");

    Console::Read();
    return 0;
}