Oracle: list user-created tables in the SYS schema I need to delete all tables (hundreds) in the SYS schema that someone accidentally created with sqlplus. Looking in dba_tables and dba_objects, I don't see a way to distinguish these tables from pre-existing stock system tables. Any help appreciated.
Most tables in SYS schema are created when database is installed. You probably know approximately when the new tables were created, so query like this should work:

select *
from dba_objects
where object_type='TABLE'
  and owner='SYS'
  and created &gt; &lt;date before new tables were created&gt;;