using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.OleDb;
class MainClass {
public static void Main() {
using (OleDbConnection con = new OleDbConnection()) {
con.ConnectionString = "Provider=SQLOLEDB;" +
@"Data Source=.\sqlexpress;" +
"Initial Catalog=Northwind;" +
"Integrated Security=SSPI";
con.Open();
if (con.State == ConnectionState.Open) {
Console.WriteLine(" Server Version = " + con.ServerVersion);
} else {
Console.WriteLine("OleDbConnection failed to open.");
Console.WriteLine(" Connection State = " + con.State);
}
}
}
}