Please read WordPress: Backing Up Your Database for a detailed explanation of this process.

这个过程的详细的解释，请阅读备份你的数据库。

youdao

In addition to backing up the target database with your normal backup software, I suggest keeping a second copy of the data in plain text.

除了用常规备份软件备份目标数据库外，我还建议再保存一份数据的纯文本副本。

youdao

Start by backing up the database, just to make sure you can recover to your previous environment, in case anything goes wrong.

首先要备份数据库，确保在发生错误时，可以恢复到前面的环境。

youdao

According to the release notes, iOS 4.3.3 reduces the size of the location database cache, stops backing the cache up to iTunes when you connect your device to a computer, and deletes the cache entirely when you turn Location Services off.

FORBES: From The That-Was-Quick File: Apple Makes Location-Tracking Fix