10g与9i中RMAN个别差异备动备份路径

9i中的RMAN备份时, 控制文件自动备份放在 $ORACLE_HOME/database (dbs):
    Starting Control File and SPFILE Autobackup at 09-MAY-08
    piece handle=C:\ORACLE\ORA92\DATABASE\C-186639842-20080509-01 comment=NONE
    Finished Control File and SPFILE Autobackup at 09-MAY-08

10g中的RMAN备份时, 控制文件自动备份放在参数 db_recovery_file_dest 定义的目录下,如: 
    SQL> show parameter recovery

    NAME                                 TYPE        VALUE
    ------------------------------------ ----------- ------------------------
    db_recovery_file_dest                string      E:\\flash_recovery_area
    db_recovery_file_dest_size           big integer 2G
    recovery_parallelism                 integer     0

    RMAN备份时, 在LOG中如下记录:   E:\FLASH_RECOVERY_AREA\{SID}\AUTOBACKUP\{DATE}\
    Starting Control File and SPFILE Autobackup at 2008-05-09:16:03:09
    piece handle=E:\FLASH_RECOVERY_AREA\WEBARCH\AUTOBACKUP\2008_05_09\O1_MF_S_654278590_42819Y90_.BKP comment=NONE
    Finished Control File and SPFILE Autobackup at 2008-05-09:16:03:12