Ghost QUEUE : exists to DBA but doesnt to the right schema

Question

Hello everyone!
Im having some problems with Advanced queue ...
I had to drop the queues from my schema, and unfortntly I made a bad decision to do that (I guess)
To drop the Queue table, I executed the following command:
alter session set events '10851 trace name context forever, level 2';
then, I dropped like a usual table:
DROP TABLE QUEUE_INIT_I1
Some problems came with this ... I tried to drop the queue, but I couldn't (dont remember why, some kind of problem about the queue_table that I dropped). So, looking at the internet I found the following command:
alter session set events '25475 trace name context forever, level 2';
[Just like I did with the queue_table]
then, I dropped it like a normal queue:
exec exec DBMS_AQADM.DROP_QUEUE('QUEUE_INIT_I1');
So ... here comes the problem: I tried to drop the user, then I couldn't, because I get the following error:
ORA-24008: queue table USER.QUEUE_INIT_I1 must be dropped first
But it already been dropped!
With SYSTEM, I did the query:
SELECT OWNER, OBJECT_NAME, OBJECT_TYPE, STATUS FROM DBA_OBJECTS where object_name LIKE 'QUEUE_INIT_I1'
OWNER OBJECT_NAME OBJECT_TYPE STATUS
USER QUEUE_INIT_I1 QUEUE INVALID
But with the user USER, I cant see the object! So, it's kind of a ghost queue. DBA_OBJECTS says that it exists, but in the right schema, it doesn't show up!
Then, I tried to drop it, but the DBMS_AQADM says that it doesn't exists... I tried to recreate the following queue and DBMS_AQADM says that IT DOES EXISTS!
It's a paradox
So, anybody knows why this is happening? and how can I fixed? (to drop the user, or just recreate the queue again)
Thanks for helping!

Answer 1

It doesnt exists anymore at metalink.oracle.com
but its ok ... I fixed the problem!
looking the query that DBA_QUEUES and DBA_QUEUE_TABLES does, I found the following tables:
aq$_queues
aq$_queue_tables
the DBA_QUEUES does a join between those tables, and the problem was that the PK was different in both. So, it couldnt show the queues in DBA_QUEUES because of that ...
but, as I said, the queue didn't exists, and I just wanted to clean it from the system ... to be able to drop the schema!
so, I doing this query:
SELECT OWNER, OBJECT_NAME FROM DBA_OBJECTS WHERE UPPER(OBJECT_NAME) LIKE 'AQ%' AND OBJECT_TYPE='TABLE' AND OWNER IN ('SYS','SYSTEM','OWNER_OF_QUEUE');
I found the candidates tables that could have registers about this queue ...
then I did a search in every table looking for a table_name [or some column like that] that could have a register about that queue ...
So I deleted those registers from there, and from obj$
Finally, all the register about that queue was gone, and I was able to drop the schema
I know that what I did was risk (TOO TOO risk), but was the only way to be able to drop the schema ...
but dropping the schema, my problem was over and I was able to recreate it without problems...
Not the best solution, but ... what can I do?
but thanks for everyone that helped me !! I really appreciated that!