Enters new file specifications for database files. The file
    specification you enter will be the file specification after
    the change is committed to the database. The change does not
    occur until you have committed all changes and ended the RdbALTER
    session.

                                   NOTE

       Prior to Oracle Rdb Version 6.0, you could use the DEPOSIT
       ROOT command to alter an after-image journal (.aij) file
       name. This is no longer an option; use the RMU Set After_
       Journal command instead.