public static void getDataSet1() { string connetionString = null; SqlConnection connection; SqlCommand command; SqlDataAdapter adapter = new SqlDataAdapter(); DataSet ds = new DataSet(); int i = 0; string firstSql = null; string secondSql = null; connetionString = "data source=103.235.104.24;initial catalog=VishwakarmaMugurtham;user id=VishMugAdmin;password=Swingsys@!1"; firstSql = "Select * from portaluser"; secondSql = "Select * from profilebasicinfo"; connection = new SqlConnection(connetionString); //SqlDataAdapter objUpdateadapter = new SqlDataAdapter(); string strSQL = string.Empty; try { connection.Open(); command = new SqlCommand(firstSql, connection); adapter.SelectCommand = command; adapter.Fill(ds, "First Table"); adapter.SelectCommand.CommandText = secondSql; adapter.Fill(ds, "Second Table"); adapter.Dispose(); command.Dispose(); connection.Close(); //retrieve first table data for (i = 0; i <= ds.Tables[0].Rows.Count - 1; i++) { //MessageBox.Show(ds.Tables[0].Rows[i].ItemArray[0] + " -- " + ds.Tables[0].Rows[i].ItemArray[1]); //Helpers.LogMessage(ds.Tables[0].Rows[i].ItemArray[3] + " -- " + Helpers.EncodePasswordToBase64(ds.Tables[0].Rows[i].ItemArray[3].ToString())); //updateData(ds.Tables[0].Rows[i].ItemArray[2].ToString(), Helpers.EncodePasswordToBase64(ds.Tables[0].Rows[i].ItemArray[3].ToString())); strSQL = "update portaluser set password = '******' where loginid = '" + ds.Tables[0].Rows[i].ItemArray[2].ToString() + "'"; Helpers.LogMessageInFlatFile1(strSQL); //objUpdateadapter.UpdateCommand = connection.CreateCommand(); //objUpdateadapter.UpdateCommand.CommandText = strSQL; //objUpdateadapter.UpdateCommand.ExecuteNonQuery(); } //objUpdateadapter.Dispose(); //retrieve second table data for (i = 0; i <= ds.Tables[1].Rows.Count - 1; i++) { //MessageBox.Show(ds.Tables[1].Rows[i].ItemArray[0] + " -- " + ds.Tables[1].Rows[i].ItemArray[1]); } } catch (Exception objEx) { Helpers.LogExceptionInFlatFile(objEx); } }