Error when dropping users

Question

I accidently created several users that have an apostrophe attatched to the end of the user name.
The database versions are 10.2.0.2 and 10.2.0.3.0
The way I initially created the users was in SQLPLUS like : create user "SCOTT'";
Now, when I go to try to drop the user fro the database, I receive the following error:
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-01740: missing double quote in identifier
ORA-06512: at line 7
I have also tried to drop the users in Enterprise Manager Console and received the same error.
Any ideas how else I can drop these users?
Thanks!
Edited by: 897877 on Aug 20, 2012 3:33 PM

Answer 1

Thank you. I can reproduce the problem in 10.2.0.1.0 on Windows.
A search indicates this is a known bug and I found this article that gives an explanation and shows a way around it.
http://mikesmithers.wordpress.com/2010/02/17/dropping-quoted-users-%E2%80%93-why-sometimes-oracle-cant-bear-to-say-goodbye/
This query
SELECT owner, trigger_name, trigger_type  
FROM dba_triggers  
WHERE base_object_type LIKE 'DATABASE%'  shows three triggers owned by MDSYS and after the author disabled the triggers the user could be dropped.
SDO_DROP_USER, SDO_DROP_USER_BEFORE, SDO_GEOR_DROP_USER
Edited to add the commands needed - but you should read the post
ALTER TRIGGER mdsys.sdo_drop_user disable;  
ALTER TRIGGER mdsys.sdo_drop_user_before disable;  
drop user "SCOTT'";
ALTER TRIGGER mdsys.sdo_drop_user enable;  
ALTER TRIGGER mdsys.sdo_drop_user_before enable;