Example of calling a function with passing parms

Question

Does anyone have an example of calling a function that returns a refcursor, but also has passing parms? I've looked at the samples and they don't have passing parms. I've tried what you would think (adding an in passing parm to the function call and I get an ora-06550 error. If I don't pass the in parm, it works.
i.e. FUNCTION MyFunction(ininteger in integer) returns refcursor;
Thanx in advance,
Frank

Answer 1

Here is an example:
plsql code:
CREATE OR REPLACE PACKAGE testfun IS
TYPE RefCursor IS REF CURSOR;
FUNCTION fun1(keyid_in IN VARCHAR2) RETURN RefCursor;
END testfun;
SHOW ERRORS;
CREATE OR REPLACE PACKAGE BODY testfun IS
FUNCTION fun1(keyid_in IN VARCHAR2) RETURN RefCursor IS
     myCur RefCursor;
BEGIN
     OPEN myCur FOR
SELECT table_name
FROM user_tab_columns
WHERE rownum < 20;
     RETURN(myCur);
END fun1;
END testfun;
SHOW ERRORS;
c# code:
using System;
using System.Data;
using Oracle.DataAccess.Client;
using Oracle.DataAccess.Types;
namespace ODPSample
     /// <summary>
     /// Sample: Demonstrates array binding
     /// </summary>
     class ArrayBind
          static void Main(string[] args)
               // Connect
               string connectStr = "User Id=fedpro;Password=password;Data Source=fedprodev";
               OracleConnection connection = new OracleConnection(connectStr);
               connection.Open();
               OracleCommand loCommand = new OracleCommand("testfun.fun1", connection);
               loCommand.CommandType = CommandType.StoredProcedure;
               //RETURN VALUES MUST BE FIRST IN THE LIST OF PARMS!!!
               OracleParameter loReturnValue = loCommand.Parameters.Add("refcursor",OracleDbType.RefCursor);
               loReturnValue.Direction = ParameterDirection.ReturnValue;
               //Parm1
               OracleParameter loParm1 = loCommand.Parameters.Add("keyid_in",OracleDbType.Varchar2);
               loParm1.Direction = ParameterDirection.Input;
               loParm1.Value = "TEST";
               //Create an OracleDataAdapter
               OracleDataAdapter loDataAdapter = new OracleDataAdapter(loCommand);
               DataTable loDataTable = new DataTable();
               try
                    //Execute the function call
                    loCommand.ExecuteNonQuery();
                    //Populate the DataTable
                    loDataAdapter.Fill(loDataTable,(OracleRefCursor)loReturnValue.Value);
                    int rowcnt = loDataTable.Rows.Count;
                    Console.WriteLine(rowcnt);
               catch (Exception e)
                    Console.WriteLine(e.Message);
                    throw;