Enable All Deprecation Compilation Warnings

ALTER SESSION SET PLSQL_WARNINGS='ENABLE:(6019,6020,6021,6022)'

CREATE OR REPLACE PROCEDURE foo AUTHID DEFINER 
IS 
   PROCEDURE inner_bar 
   IS 
   BEGIN 
     DBMS_OUTPUT.PUT_LINE('Executing inner_bar'); 
   END; 
   PROCEDURE inner_foo 
   IS 
   PRAGMA DEPRECATE(INNER_FOO , 'procedure inner_foo is deprecated'); 
   BEGIN 
     DBMS_OUTPUT.PUT_LINE('Executing inner_foo'); 
   END; 
BEGIN 
  DBMS_OUTPUT.PUT_LINE('Executing foo'); 
  inner_bar; 
END;