Specifies the file associated with the database.
    If you omit the FILENAME argument, the file specification takes
    the following defaults:
    o  Device: the current device for the process
    o  Directory: the current directory for the process
    o  File name: the alias (if you omit the FILENAME argument, you
       must specify the WITH ALIAS clause)
    Use either a full file specification or a partial file
    specification. You can use a logical name for all or part of a
    file specification.
    If you use a simple file name, SQL creates the database in the
    current default directory. Because the IMPORT statement may
    create more than one file with different file extensions, do
    not specify a file extension with the file specification.