bat文件@echo off set ddate=%date:~0,10% set ttime=%time:~0,8% set hhour=%ttime:~0,2% echo %ttime% d: set ppath=D:\ set filename=文件名_%ddate%.DMP exp username/password@tns_name file=%ppath%\%filename% cd %ppath% rar a -df %filename%.rar %filename% cd D:\ exit
set ddate=%date:~0,10%
set ttime=%time:~0,8%
set hhour=%ttime:~0,2%
echo %ttime%
d:
set ppath=D:\
set filename=文件名_%ddate%.DMP
exp username/password@tns_name file=%ppath%\%filename%
cd %ppath%
rar a -df %filename%.rar %filename%
cd D:\
exit
用imp 导入的时候,怎么删掉以前的所有表?