I believe you do not see a tail of the name and that is why they appear to be the same. Below is example:


select object_name,owner from dba_objects where object_name like '%AAA%';

OBJECT_NAME
-------------------------------------------------------------------------------------------
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAB


COL OBJECT_NAME FORMAT A10;


SET WRAP OFF


OBJECT_NAM OWNER
---------- ------------------------------
AAAAAAAAAA SYSTEM
AAAAAAAAAA SYSTEM



Thing happen!!!