If you make a mistake or want to recreate the database objects for the P6 EPPM database:
Go to \database\scripts\install\PM_08_03_00 and execute the orpm_drop_users.sql script. This will drop admuser, privuser, pubuser, bgjobuser, and PxRptUser and their objects.
Go to \database\scripts\install\PPM_08_03_00 and execute the orppm_drop_users.sql script. This will drop admuser, privuser, pubuser, and bgjobuser, and their objects.