[英]Backup with mysqldump & rsync
I am trying to backup my database over the network with mysqldump
and rsync
. 我正在尝试使用
mysqldump
和rsync
通过网络备份我的数据库。 I wanted to ask if there is any way to know if the database has been modified since the last time I did my old dump, before doing a new dump or update the old one. 我想询问是否有任何方法可以知道自上次执行旧转储以来数据库是否已被修改, 然后再进行新转储或更新旧转储。
Thank you. 谢谢。
You could access each database that might need to be dumped and ask for the last modified time. 您可以访问可能需要转储的每个数据库并请求上次修改时间。 It's available through the
information_schema
database: 它可以通过
information_schema
数据库获得:
SELECT UPDATE_TIME
FROM information_schema.tables
WHERE TABLE_SCHEMA = 'dbname'
AND TABLE_NAME = 'tabname'
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