I started in 1983, in 2007 i still on a case!

OleDBConnection ....
......
OleDbDataReader rdr = cmd.ExecuteReader() ;
while ( rdr.read() )
    Console.Writeline( rdr["Customerid"] ) ;
rdr.Close() ;

OleDbDataReader *pOleDataRead = pComm -> ExecuteReader() ;
while ( pOleDataRead -> Read() )
{
     MessageBox :: Show( pOleDataRead[ "Customerid" ] ) ;
}
pOleDataRead -> Close() ;

    Console.Writeline( rdr["Customerid"] ) // код на C#;

I started in 1983, in 2007 i still on a case!

OleDbConnection *pConn = new OleDbConnection() ;
pConn -> ConnectionString = "Provider=SQLOLEDB; Data Source=SCOOTER; Initial Catalog=Northwind; Trusted_Connection=Yes;" ;
pConn -> Open() ;
OleDbCommand *pComm = pConn -> CreateCommand() ;
pComm -> CommandText = " select customerid, companyname from customers " ;
OleDbDataReader *pOleDataRead = pComm -> ExecuteReader() ;
int i = pOleDataRead -> GetOrdinal( "CompanyName" ) ;
    MessageBox :: Show(  i.ToString() ) ;
while ( pOleDataRead -> Read() )
{
       MessageBox :: Show( pOleDataRead-> GetString( i ) ) ;
}
pOleDataRead -> Close() ;