External DB objects - table/query (not Documentum object) is accessable only for Super User permission user. In general you get it, when query to DB by docbase owner alias dm_dbo (select * from dm_dmo.table_name).
For using an object in external DB - this object should be registered.
1. Stop the Documentum Content Server (Repository) and DocBrocker 2. Go to $DM_HOME/dba/config/<repository name>/ 3. Backup dbpasswd.txt 4. Run SQL command in DBMS (change the password of Repository Owner) ALTER USER <Repository Owner Username> IDENTIFIED BY <New Password>; 5. Replace the new password as plain text (<New Password>) in dbpasswd.txt and save it 6. Go to $DM_HOME/product/6.7/bin/ and run the following: dm_encrypt_password -docbase <docbase name> -rdbms -encrypt <database password> 7. Run Repository and DocBrocker start scripts.