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HomeDatabaseMysql Tutorial每天定时备份MySQL数据库

备份方式使用mysqldump + crond建立数据库备份的sh文件,如/root/sbin/db-backup.shDATE=`date +%Y-%m-%d`/usr/bin/mysqldump -u

备份方式使用mysqldump + crond

建立数据库备份的sh文件,如/root/sbin/db-backup.sh

DATE=`date +%Y-%m-%d`

/usr/bin/mysqldump -uroot -p123456  mydatabase > /root/backup/mysql-backup.sql.$DATE

内容为备份数据库mydatabase中的全部表到mysql-backup.sql.$DATE文件中,其中$DATE为根据命令的执行时间动态获取的日期

如果要备份mysql的全部数据库则使用

/usr/bin/mysqldump -uroot -p123456  --all-databases > /root/backup/mysql-backup.sql.$DATE

如果数据库中的表包含二进制字段如blod,则必须添加hex-blod的参数,如

/usr/bin/mysqldump -uroot -pqaywsx123 --hex-blod --all-databases > /root/dbbak/winsmedia.sql.$DATE

添加到crond中

编辑 /etc/crontab

最后一行添加  30 23 * * * root  /root/sbin/db-backup.sh

表示每天的晚上23点30 开始执行备份命令

重启加载crond服务   service crond reload

注:备份的mysql-backup.sql.$DATE 文件内容编码为utf8,所以要保证数据库的编码也是utf8否则可能会出现中文乱码。

或者添加一个 --default-charset的参数,,具体可参考mysqldump命令帮助说明

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