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Editorial Team
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Asked: 2026-05-24T12:41:48+00:00

So i am working on a web service that will obtain data from a

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So i am working on a web service that will obtain data from a database utilizing two functions that make calls to the database. The goal is to have it so that if there is a specific value in one of the parameters lets say 

            bool x= false;
        if ( "Y".Equals( parameterValve, StringComparison.InvariantCultureIgnoreCase ) )
            x= true;
                    if ( x)
                        cmd.Parameters.Add( "function_call1", OracleType.Cursor ).Direction = ParameterDirection.Output;  
                    else
                        cmd.Parameters.Add( "function_call2", OracleType.Cursor ).Direction = ParameterDirection.Output;                      
                        try
                        {
grab data here
}
return to webservice

I have all of this setup already and it works fine for the first parameter. However, when i call the webservice using the second parameter call i get this error.

System.Data.OracleClient.OracleException: ORA-06503: PL/SQL: 
Function returned without value
ORA-06512: at "database.package", line 103
ORA-06512: at line 1

My question is what exactly is the reason for this error to occur?
Is is because i am calling the function incorrectly or could there be somthing wrong with the function call itself?

Essecentially i’ve been staring at this code for some time now trying to figure out what it is i’ve done incorrectly so i was hoping someone might be able to point me in the right direction of where i should be looking to correct this error.

any help or suggestions are greatly appreciated.

Thanks!

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1 Answer

  1. Editorial Team

    There is something wrong with the function itself.

    Somehow, Oracle is getting to the end of the function without returning anything. For example, this function will run successfully if you pass in 1 argument and throw the ORA-6503 error if two arguments are passed in

    CREATE OR REPLACE FUNCTION throw_error( p_arg1 IN NUMBER,
                                        p_arg2 IN NUMBER DEFAULT null )
  RETURN NUMBER
IS
BEGIN
  IF( p_arg2 IS NULL )
  THEN
    RETURN 1;
  END IF;
END;


SQL> select throw_error(1) from dual;

THROW_ERROR(1)
--------------
             1

SQL> select throw_error(1,2) from dual;
select throw_error(1,2) from dual
       *
ERROR at line 1:
ORA-06503: PL/SQL: Function returned without value
ORA-06512: at "HR.THROW_ERROR", line 10
ORA-06512: at line 1
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