When you first create a database, you give file specifications
    for the files that contain all database definitions (metadata)
    and user data stored in the database. You must use ASCII
    alphanumeric characters for the file specification name.

    You can also use a file specification whenever you refer to a
    database in the CONNECT and DECLARE ALIAS statements, although
    Oracle Rdb recommends that you always use a repository path name
    when the repository is installed.

    A full file specification includes:

    o  Network node name

    o  Device name

    o  Directory name or list

    o  File name

    o  File extension

    o  File version number

    Note that if you are specifying a database name for a remote
    database, all logical names/file specifications referenced
    will be evaluated on the remote node, not on the local node.
    Therefore, the necessary logical names/file specifications must
    exist on the remote node.