C# Oracle 連接與修改

string ConnectionString = "Data Source=數據庫名;User Id=用戶名;Password=密碼;Integrated Security=no;";

        OracleConnection conn=new  OracleConnection(ConnectionString);

        conn.Open();

        OracleCommand cmd = new OracleCommand("select * from FY", conn);

        OracleDataAdapter oda = new OracleDataAdapter(); 

        oda.SelectCommand = cmd;

          DataSet ds = new DataSet();

          oda.Fill(ds);

          gridControl1.DataSource = ds.Tables[0].DefaultView;

           conn.Close();

      string ConnectionString = "DataSource=數據庫名稱;User Id=數據庫登陸名;Password=密碼;Integrated Security=no;";

       OracleConnection conn=new OracleConnection(ConnectionString);

       conn.Open();

       string str = "SQL修改語句'";

      //當不傳遞conn時，會提示連接沒有打開

       OracleCommand cmd1 = newOracleCommand(str,conn);

       //ExecuteNonQuery()對於 Update,Insert,Delete 語句執行成功是返回值為該命令所影響的行數

       int result=cmd1.ExecuteNonQuery();