SQL & PL/SQL

Hello I have this problem
Say I create package like this:

CREATE OR REPLACE PACKATE TEST_PACKAGE

PROCEDURE TEST(RetCode OUT VARCHAR2);

END TEST_PACKAGE;

CREATE OR REPLACE PACKATE BODY TEST_PACKAGE

gvc_String VARCHAR2(20) := 'abc'

PROCEDURE TEST(RetCode OUT VARCHAR2) IS
BEGIN
RetCode := gvc_String;
END;

END TEST_PACKAGE;

Now I create an anonymou block like this

DECLARE
RetCode VARCHAR2(20);
BEGIN

TEST_PACKAGE.TEST(RetCode);
DBMS_OUTPUT.PUT_LINE(RetCode);

END;

The problem is that nothing is printed. RetCode is null. It looks like the global variable is not initialized at the moment I am calling the test procedure... But why? It should be initialized as soon as I touch the package, right?

EDITED...

Edited by: xxsawer on 29.3.2012 8:12

Edited by: xxsawer on 29.3.2012 9:13