@echo off
rem 删除7天前的数据库备份
cd D:\db_bak\qd_web_project\dump
forfiles /m *.sql.gz /d -7 /c "cmd /c del @file /f"
cd D:\db_bak\ios_web_project\dump
forfiles /m *.sql.gz /d -7 /c "cmd /c del @file /f"
cd D:\db_bak\game_db_all\all
forfiles /m *.sql.gz /d -7 /c "cmd /c del @file /f"
cd D:\db_bak\game_db_all\dump
forfiles /m *.sql.gz /d -7 /c "cmd /c del @file /f"
cd D:\db_bak\android_web_project\dump
forfiles /m *.sql.gz /d -7 /c "cmd /c del @file /f"
rem 生成备份数据库
cd /d C:\Program Files\MySQL\MySQL Server 5.6\bin
SET filePath=D:\databackup\db\%date:~0,4%%date:~5,2%%date:~8,2%%time:~0,2%%time:~3,2%
SET sqlPath=%filePath%.sql
SET rarPath=%filePath%.rar
mysqldump.exe dbname -P 3306 -uroot -proot > %sqlPath%
rem 压缩备份的数据库文件
"D:\Program Files (x86)\WinRAR\WinRAR.exe" a -ibck -m5 %rarPath% %sqlPath%
rem 删除数据加文件
del %sqlPath%
原文地址：https://blog.51cto.com/holy2010/2381875