据库备份语句出错,请问各位高手如何修改?

Question

据库备份语句
set winrar_path="C:\Program Files\WinRAR\"
set path=%path%;%winrar_path%
exp system/oracle@OR9I file=D:/dbbackup/db%DATE:~4,10%.dmp grants=y log=D:/dbbackup/db%DATE:~4,10%exp.log full=y
rar a -df D:\dbbackup\db%DATE:~4,10% .rar   D:\dbbackup\*.dmp  D:\dbbackup\*.log 出错内容C:\>exp system/oracle@or9i file=d:/dbbackup/db%DATE:~4,10%.dmp grants=y log=d:/d
bbackup/db%DATE:~4,10%exp.log full=y
LRM-00112: 参数 'log' 不允许有多个值
EXP-00019: 处理参数失败，有关帮助请键入 'EXP HELP=Y'
EXP-00000: 导出终止失败请问各位高手如何修改?

Answer 1

原因：log名称中有空格，导致路劲不全
 log=D:/dbbackup/db%DATE:~4,10%exp.log%DATE:~4,10%返回值日期和星期中间有空格

Answer 2

 建议改为:  log=f:/dbbackup/db%DATE:~0,10%.log

Answer 3

%DATE:~4,10%改为%DATE:~0,10%就可以了!!!