Back up the test database AWT (use a sample database to test).
备份测试数据库awt(使用一个示例数据库来测试)。
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。
Next you need to back up the database using the BACKUP command.
然后需要使用BACKUP命令备份数据库。
The.dump command can also be used to back up a database table.
dump命令也可以用于备份数据库表。
It is extremely important to back up your database before beginning the upgrade.
开始升级之前，备份你的数据库非常重要。
It is extremely important to back up your database before beginning the upgrade.
开始升级之前，备份你的数据库非常重要。
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