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windows下oracle自动备份脚本,自动保留7天

windows下oracle自动备份脚本,自动保留7天
 
Bat代码    www.zzzyk.com  
@echo off  
set backhome=backup  
set year=%date:~0,4%  
set month=%date:~5,2%  
set day=%date:~8,2%  
set mydate=%year%%month%%day%  
set hhmmss=%time:~0,2%%time:~3,2%%time:~6,2%  
if "%hhmmss:~0,1%"==" " set hhmmss=0%time:~1,1%%time:~3,2%%time:~6,2%  
mkdir d:\%backhome%\%mydate%  
echo ------------------------------------------------ >> d:\%backhome%\%mydate%\log.txt  
echo start backup at %mydate%_%hhmmss% >> d:\%backhome%\%mydate%\log.txt  
echo ------------------------------------------------ >> d:\%backhome%\%mydate%\log.txt  
exp andacms/andacms@OA file=d:\%backhome%\%mydate%\andacms_%mydate%.dmp owner=andacms BUFFER=512000000 2>> d:\%backhome%\%mydate%\log.txt  
echo ------------------------------------------------ >> d:\%backhome%\%mydate%\log.txt  
set endyear=%date:~0,4%  
set endmonth=%date:~5,2%  
set endday=%date:~8,2%  
set enddate=%endyear%%endmonth%%endday%  
set endhhmmss=%time:~0,2%%time:~3,2%%time:~6,2%  
if "%endhhmmss:~0,1%"==" " set endhhmmss=0%time:~1,1%%time:~3,2%%time:~6,2%  
echo backup finished at %enddate%_%endhhmmss% >> d:\%backhome%\%mydate%\log.txt  
echo ------------------------------------------------ >> d:\%backhome%\%mydate%\log.txt  
   
rem 计算指定天数之前的日期  
set DaysAgo=3  
rem 假设系统日期的格式为yyyymmdd  
call :DateToDays %date:~0,4% %date:~5,2% %date:~8,2% PassDays  
set /a PassDays-=%DaysAgo%  
call :DaysToDate %PassDays% DstYear DstMonth DstDay  
set DstDate=%DstYear%%DstMonth%%DstDay%  
if exist d:\%backhome%\%DstDate% (  
echo 删除%DaysAgo%天前的数据:%DstDate% >>d:\%backhome%\%mydate%\log.txt  
rmdir /s/q d:\%backhome%\%DstDate%  
)  
goto :eof  
   
:DateToDays %yy% %mm% %dd% days  
setlocal ENABLEEXTENSIONS  
set yy=%1&set mm=%2&set dd=%3  
if 1%yy% LSS 200 if 1%yy% LSS 170 (set yy=20%yy%) else (set yy=19%yy%)  
set /a dd=100%dd%%%100,mm=100%mm%%%100  
set /a z=14-mm,z/=12,y=yy+4800-z,m=mm+12*z-3,j=153*m+2  
set /a j=j/5+dd+y*365+y/4-y/100+y/400-2472633  
endlocal&set %4=%j%&goto :EOF  
   
:DaysToDate %days% yy mm dd  
setlocal ENABLEEXTENSIONS  
set /a a=%1+2472632,b=4*a+3,b/=146097,c=-b*146097,c/=4,c+=a  
set /a d=4*c+3,d/=1461,e=-1461*d,e/=4,e+=c,m=5*e+2,m/=153,dd=153*m+2,dd/=5  
set /a dd=-dd+e+1,mm=-m/10,mm*=12,mm+=m+3,yy=b*100+d-4800+m/10  
(if %mm% LSS 10 set mm=0%mm%)&(if %dd% LSS 10 set dd=0%dd%)  
endlocal&set %2=%yy%&set %3=%mm%&set %4=%dd%&goto :EOF  
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