数据库系统的备份与恢复部分正是要解决这些问题。
The part of backup and recovery in DBMS is to solve these problems.
在这样的情况下，您就会了解到有一个好的备份与恢复策略是多么重要了。
You can see how having a good backup-and-restore strategy is important in such situations.
关键数据的备份与恢复操作已经成为系统日常运行维护的一个重要组成部分。
Backup and recovery operation of crucial data have become an important part of systematic daily operation maintenance.
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