oracle10g的自动备份脚本：
@echo off
set sid=orcl
set username=
set password=
set bakdir=d:/batdata
set bakdate=%data:~0,10%
set connect=username/password@sid
exp username/password@sid full=y buffer=64000000 file=%bakdir%/%dirdate%.dmp log=%bakdir%/exp%bakdate%.log
forfiles /p%bakdir%/d-10-c"cmd /c/del /f /q@path"//自动删除过期的备份数据