HELP! Dropping of Type not possible Don't try this at work!

Question

Please Help me to drop the types I Created here:
create or replace force type TControlRuleNode as Object(
RuleOperator number(10),
ChildCol TControlRuleNodeList);
create or replace force type TControlRuleNodeList as table of ref TControlRuleNode ;
alter type TControlRuleNode compile;
alter type TControlRuleNodeList compile;
Can't drop the List because it has dependents ( TControlRuleNode ).
Can't drop TControlRuleNode because it has dependents (list).
Can't replace. Can't drop. Can't create.
Can't drop database either.
Any Ideas ? PLEASE ?

Answer 1

Just to prove this works...
SQL> select object_name, status
  2  from user_objects
  3  where object_type = 'TYPE'
  4  and object_name like 'TCONTROLRULE%'
  5  and subobject_name is null;
OBJECT_NAME                    STATUS
TCONTROLRULENODE               VALID
TCONTROLRULENODELIST           VALID
SQL> drop type TCONTROLRULENODELIST force
  2  /
Type dropped.
SQL> select object_name, status
  2  from user_objects
  3  where object_type = 'TYPE'
  4  and object_name like 'TCONTROLRULE%'
  5  and subobject_name is null;
OBJECT_NAME                    STATUS
TCONTROLRULENODE               INVALID
SQL> drop type TCONTROLRULENODE       
  2  /
Type dropped.
SQL> select object_name, status
  2  from user_objects
  3  where object_type = 'TYPE'
  4  and object_name like 'TCONTROLRULE%'
  5  and subobject_name is null;
no rows selected
SQL>In general Oracle's TYPE implementation does not respond well to the sort of recursion you have tried to implement. Everything has to be valid at the end of the SQL statement - there's none of the "let it all hang loose until runtime" casualness you might have come to expect from working with other OO languages.
Cheers, APC