Hello Chris, in 12c you have SELECT * FROM DBA_USERS WHERE oracle_maintained ='Y' If your users don't have objects, then you can say SELECT * FROM DBA_USERS WHERE not exists(select 1 from dba_objects where owner=username and rownum=1) 2015-03-18 10:36 GMT-04:00 Chris Taylor <christopherdtaylor1994@xxxxxxxxx>: > I'm trying to find a master list to use as a filter for some reports of > ALL Oracle delivered usernames that could be installed in the database when > you first create a db. > > I'm familiar with many of them but I'm hoping to find a complete list - > like if you installed every possible product, sample schema etc, what would > that list of usernames be? > > Anyone know of a master list anywhere of potential Oracle supplied > usernames/schemas? > > Thanks, > Chris > >