ADO Database C#

using System;
using System.Data;
using System.Data.OleDb;
   class CommandOleDbQuery
   {
      static void Main() 
      {
         OleDbConnection thisConnection = new OleDbConnection("provider = microsoft.jet.oledb.4.0;data source = Employee.mdb;");
      
         OleDbCommand thisCommand = new OleDbCommand("SELECT ID, FirstName FROM Employee",thisConnection);
         try 
         {
            thisConnection.Open();
            OleDbDataReader thisReader = thisCommand.ExecuteReader();
            while (thisReader.Read()) {
               Console.WriteLine("Product ID and Name: {0} {1}",
                  thisReader.GetValue(0),
                  thisReader.GetValue(1));
            }
         } 
         catch (OleDbException ex) 
         {
            Console.WriteLine(ex.ToString());
         }
         finally 
         {  
            thisConnection.Close();
            Console.WriteLine("Connection Closed.");
         }
      }
   }