A quick post as a reminder for myself some time down the road. After all, we all need reminders every once in a while!
Prior to Oracle Database 12c finding a list of default users within the database was always a pain. In Oracle Database 12c or later, this has become much simpler. Oracle introduced a column on the *_users views that allows the end users to identify what users are maintained by Oracle. This column name is ORACLE_MAINTAINED. The value of the column is either “N” or “Y”. If it is “Y”, then user account is maintained by Oracle.
A simple query of the ALL_USERS view will return about 57 different accounts that are maintained by Oracle in Oracle Database 19c (Autonomous Data Warehouse).
select * from all_users
where oracle_maintained = 'Y'
order by username;
For more information, the Oracle Database 19c docs can be referenced here.
Current Oracle Certs
I’m Bobby Curtis and I’m just your normal average guy who has been working in the technology field for awhile (started when I was 18 with the US Army). The goal of this blog has changed a bit over the years. Initially, it was a general blog where I wrote thoughts down. Then it changed to focus on the Oracle Database, Oracle Enterprise Manager, and eventually Oracle GoldenGate.
If you want to follow me on a more timely manner, I can be followed on twitter at @dbasolved or on LinkedIn under “Bobby Curtis MBA”.