The root file specification of the database for the after-image
    journal file from which tables will be unloaded. The default file
    extension is .rdb.

    The database must be the same actual database that was used to
    create the after-image journal files. The database is required
    so that the table metadata (information about data) is available
    to the RMU Unload After_Journal command. In particular, the names
    and relation identification of valid tables within the database
    are required along with the number of columns in the table and
    the compression information for the table in various storage
    areas.

    The RMU Unload After_Journal process attaches to the database
    briefly at the beginning of the extraction operation in order to
    read the metadata. Once the metadata has been read, the process
    disconnects from the database for the remainder of the operation
    unless the Continuous qualifier is specified. The Continuous
    qualifier indicates that the extraction operation is to run non-
    stop, and the process remains attached to the database.