Duplicate
    Noduplicate

    Causes the RMU Copy_Database command to generate a new database
    with the same content, but with a different identity from that
    of the original database. For this reason, .aij files cannot be
    interchanged between the original and the duplicate database.
    This qualifier creates copies of your databases that are expected
    to evolve independently in time. In this case, being able to
    exchange .aij files might be a security breach, and a likely
    source of corruption.

    A duplicate database has the same contents as the original
    database, but not the same identity. A database copied with
    the Noduplicate qualifier is an exact replica of the original
    database in every way and, therefore, .aij files can be
    interchanged between the original and duplicate database.

    The default is the Noduplicate qualifier.