DataTable tbl = new DataTable();
	using (OleDbConnection con = new OleDbConnection(
	"Provider=Microsoft.SQLSERVER.CE.OLEDB.3.5;"+
	@"Data Source=C:\Program Files\Microsoft SQL Server Compact Edition\v3.5\Samples\northwind.sdf;"))
	{
	  con.Open();
	  OleDbCommand cmd = con.CreateCommand();
	  cmd.CommandText = "select * from customers";
	  OleDbDataReader rdr = cmd.ExecuteReader();
	  tbl.Load(rdr);
	  con.Close();
	}
	
	DataTable usaCustomers =
	 tbl.AsEnumerable()
	    .Where(c => c.Field<string>("Country") == "USA")
		.CopyToDataTable();
	
	DataTable ukCustomers =
	 tbl.AsEnumerable()
	    .Where(c => c.Field<string>("Country") == "UK")
		.CopyToDataTable();
	
//	usaCustomers.Dump("USA");
//	ukCustomers.Dump("UK");