Obvious choices are to back up the files to a traditional medium, such as tape.
显而易见的选择是将文件备份到传统媒介,如磁带。
Shut the database down and back up all data and all log and control files.
关闭数据库,备份所有数据以及所有日志和控制文件。
It is extremely important to back up your files before beginning the upgrade.
开始升级之前,备份你的文件非常重要。
It is extremely important to back up your files before beginning the upgrade.
开始升级之前,备份你的文件非常重要。
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