PROCEDURE PC_TEST(  IN_PRO_TP       IN VARCHAR2             

                  , IN_DEFAULT      IN VARCHAR2 DEFAULT '12345'                                             

                  , OUT_CURSOR      OUT SYS_REFCURSOR

     )

IS                                                                                                                      

    V_CS        SYS_REFCURSOR;    

BEGIN                                                                                                                   

    BEGIN

     OPEN V_CS FOR

     SELECT IN_PRO_TP

          , IN_DEFAULT

       FROM DUAL;

    END;                                                                                                                

    OUT_CURSOR    := V_CS;                                                                                               

END PC_TEST;  

VAR OUTCURSOR REFCURSOR;

EXEC PC_TEST('123',:OUTCURSOR)

ORA-06550: 줄 1, 열18:PLS-00306: 'PC_TEST' 호출 시 인수의 갯수나 유형이 잘못되었습니다

ORA-06550: 줄 1, 열18:PL/SQL: Statement ignored

디폴트 값이 있어도 필수로 파라미터 갯수로 넘겨줘야되면 디폴트값은 의미 없지않나요??