Log
    Nolog
    Log=file-name

    Specifies whether the statistics deleted from the RDB$WORKLOAD
    system table are to be logged. Specify the Log qualifier to have
    the information displayed to SYS$OUTPUT. Specify the Log=file-
    spec qualifier to have the information written to a file. Specify
    the Nolog qualifier to prevent display of the information. If you
    do not specify any variation of the Log qualifier, the default is
    the current setting of the DCL verify switch. (The DCL SET VERIFY
    command controls the DCL verify switch.)