Unable to run authentication credential check function.

Question

Hi everybody,
I have a employee table. In order to make authentication custom I use that table. The following is the function for it.
CREATE OR REPLACE PACKAGE BODY PKG_CONTROLS
AS
FUNCTION CheckPassword (vUsername VARCHAR2,vPassword VARCHAR2)
RETURN BOOLEAN
IS
     v_pw_check varchar2(1);
BEGIN   
    SELECT 'x'
    INTO v_pw_check
    FROM EMPLOYEE
    WHERE EMP_NAME = vUsername
    AND PASSWORD = vPassword;
    APEX_UTIL.SET_AUTHENTICATION_RESULT(0);
    RETURN true;   
EXCEPTION WHEN no_data_found THEN
    APEX_UTIL.SET_AUTHENTICATION_RESULT(4);
    RETURN false;
END CheckPassword;
END PKG_CONTROLS;I also form an authentication schema and call the above function. But when I try to login the system with the data that I saved before, it gives the following error;
ORA-06550: line 2, column 8: PLS-00306: wrong number or types of arguments in call to 'CHECKPASSWORD' ORA-06550: line 2, column 1: PL/SQL: Statement ignored
Error     ERR-10460 Unable to run authentication credential check functionPlease help me why am I taking this error?
Thanks

Answer 1

Use
  RETURN PKG_CONTROLS.CheckPasswordfor yor authentication function and it will work. I think the default is two parameters and apex is parsing those two always. This is why explicit handling over of parameters will not work.
Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.opal-consulting.de/training
http://apex.oracle.com/pls/otn/f?p=31517:1
http://www.amazon.de/Oracle-APEX-XE-Praxis/dp/3826655494
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