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string strsql = "select * from user where UserID=4445";

  string dbpath = Server.MapPath("App_Data/cnhww.mdb");
  string strConnection = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + dbpath + ";User Id=;Password=;";
  OleDbConnection objConnection = new OleDbConnection(strConnection);
  objConnection.Open();

  OleDbCommand objCommand = new OleDbCommand(strsql, objConnection);
  OleDbDataReader dr = objCommand.ExecuteReader();

  if (dr.Read())
  {
  Response.Write(dr["UserName"].ToString());
  }
  dr.Close();

  objConnection.Close();


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