Oracle automatic backup script in windows, automatically retained for 7 days

Windows oracle automatic backup script, automatically retain 7 days Bat code www.2cto.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% % "=" "set hhmmss = 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: \ % backhom E % \ % 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% % "=" "set endhhmmss = 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 calculates the date set DaysAgo = 3 rem before the specified number of days. Assume that the system date format is 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 deletes data from % DaysAgo % days ago: % 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 = % 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