Members of the db_owner database role can perform all configuration and maintenance activities on the database. A database's db_owner is assigned at database creation and additional users can be given the db_owner role by any user who is also a db_owner. A user with this role is required to perform these activities.
The OnBase database should be created with a database user account that will never be deleted (for example, the sa database user account), rather than an Active Directory account, to ensure perpetual access to the db_owner role's capabilities.
When upgrading from the Legacy Security model, the hsi account may already be assigned the db_owner role. When using the High Security model, the hsi account does not need to be assigned to the db_owner role. For more information on the Legacy Security model, see Legacy Security Model.