CREATE OR REPLACE PROCEDURE gd_CURSOR(MYCS1 OUT SYS_REFCURSOR,MYCS2 OUT SYS_REFCURSOR,a out varchar)as
BEGIN
 a:='test';
 OPEN MYCS1 FOR
 SELECT 1 from dual;
 OPEN MYCS2 FOR
 SELECT 2 from dual;

END;

 /// <summary>
 /// 執(zhí)行oracle存儲過程返回多個結果集
 /// </summary>
 /// <param name="strProcName">存儲過程名稱</param>
 /// <param name="ResultCount">返回個數</param>
 /// <param name="paras">參數</param>
 /// <returns>任意對象數組</returns>
 public object[] ExcuteProc_N_Result(string strProcName, int ResultCount, params OracleParameter[] paras)
 {
  using (OracleConnection conn = new OracleConnection("User ID=用戶名;Password=密碼;Data Source=數據庫;"))
  {
  OracleCommand cmd = new OracleCommand(strProcName, conn);
  if (paras != null && paras.Length > 0)
  {
   for (int j = 0; j < paras.Length; j++)
   {
   if (paras[j].Value == null)
   {
    paras[j].Value = DBNull.Value;
   }
   }
  }
  cmd.Parameters.AddRange(paras);
  cmd.CommandType = CommandType.StoredProcedure;
  conn.Open();
  cmd.ExecuteNonQuery();
  int i = 0;
  //int nOutputParametersCount = 0;
  object[] objResult = new object[ResultCount];
  foreach (OracleParameter p in cmd.Parameters)
  {
   if (p.Direction == ParameterDirection.Output || p.Direction == ParameterDirection.InputOutput)
   {
   if (p.Value is OracleDataReader)
   {
    OracleDataReader reader = p.Value as OracleDataReader;
    objResult[i++] = ConvertDataReaderToDataTable(reader);
   }
   else
   {
    objResult[i++] = p.Value;
   }
   }
  }
  return objResult;
  }
 }
 /// <summary> 
 /// 將DataReader 轉為 DataTable 
 /// </summary> 
 /// <param name="DataReader">OleDbDataReader</param> 
 protected DataTable ConvertDataReaderToDataTable(OracleDataReader reader)
 {
  DataTable objDataTable = new DataTable("TmpDataTable");
  try
  {
  int intFieldCount = reader.FieldCount;//獲取當前行中的列數；
  for (int intCounter = 0; intCounter <= intFieldCount - 1; intCounter++)
  {
   objDataTable.Columns.Add(reader.GetName(intCounter), reader.GetFieldType(intCounter));
  }
  //populate datatable 
  objDataTable.BeginLoadData();
  //object[] objValues = new object[intFieldCount -1]; 
  object[] objValues = new object[intFieldCount];
  while (reader.Read())
  {
   reader.GetValues(objValues);
   objDataTable.LoadDataRow(objValues, true);
  }
  reader.Close();
  objDataTable.EndLoadData();
  return objDataTable;
  }
  catch (Exception ex)
  {
  throw new Exception("轉換出錯出錯!", ex);
  }
 }

OracleParameter[] oracleParameter = new OracleParameter[]{
new OracleParameter("MYCS1",OracleType.Cursor),
new OracleParameter("MYCS2",OracleType.Cursor),
new OracleParameter("a",OracleType.VarChar,200),
};
oracleParameter[0].Direction = ParameterDirection.Output;
oracleParameter[1].Direction = ParameterDirection.Output;
oracleParameter[2].Direction = ParameterDirection.Output;

object[] xxx = ExcuteProc_N_Result("gd_CURSOR", 3, oracleParameter);

Create or Replace Procedure xx_yy
(
 i_OrderID in number,
 i_ReturnValue out number
)
is
 v_RealValue number;
 v_TotalValue number;
 v_AdvendorID number;
begin
 自己寫就行
end;

create table ORDERTABLE
(
 ORDERID NUMBER not null,
 TEXT NUMBER not null
)

(
 i_OrderID in number,
 i_ReturnValue out number
)
is
 spass ordertable.text%type;
begin
 select text into spass from ordertable where orderid=i_OrderID; 
 i_ReturnValue:=spass;
 exception
 when no_data_found
 then i_ReturnValue:=-1; 
end;

using System.Data .OracleClient ;//(別忘了添加)
OracleConnection Oraclecon = new OracleConnection ("Password=dloco;User ID=dloco;Data Source=dloco;");
  OracleCommand myCMD = new OracleCommand();
  OracleParameter[] parameters = { new OracleParameter("i_OrderID", OracleType.Number, 10),new OracleParameter("i_ReturnValue",OracleType.Number,10 )};
  parameters[0].Value = 1;
  parameters[1].Direction = ParameterDirection.Output;

  myCMD.Connection = Oraclecon;
  myCMD.CommandType = CommandType.StoredProcedure;
  myCMD.CommandText = "dloco.xx_yy";

  myCMD.Parameters .Add (parameters[0]);
  myCMD.Parameters .Add (parameters[1]);

  myCMD.Connection.Open();  

  myCMD.ExecuteNonQuery();  
  
  string result=myCMD.Parameters["i_ReturnValue"].Value.ToString();
  MessageBox.Show (result);

  Oraclecon.Close();