c# 执行ORACLE存储过程并返回行数

            using (OracleConnection connection = new OracleConnection(connectionString))
            ...{
                OracleCommand Ocmd = new OracleCommand("存储过程名", connection);
               //执行等待超时时间
                Ocmd.CommandTimeout = 30;

                Ocmd.CommandType = CommandType.StoredProcedure;

                OracleParameter Oparam;

                            Oparam = Ocmd.Parameters.Add("参数1", OracleType.VarChar);
                            Oparam.Value = 变量值1;
                             Oparam = Ocmd.Parameters.Add("参数2",OracleType.Int32);
                            Oparam.Value = 变量值12;
    
              try
                ...{
                    connection.Open();
                    int rows = Ocmd.ExecuteNonQuery();
                    return rows;
                }
                catch (OracleException E)
                ...{
                    throw new Exception(E.Message);
                }
                finally
                ...{
                    Ocmd.Dispose();
                    connection.Close();
                }
            }