在继续之前应该测试数据库备份。
这可以是数据库备份或表空间备份。
This can be either a database backup or a table space backup.
执行全数据库备份时(如果还没有这么做的话)。
When to perform a full database backup (if you have never done so).
在DB 2中使用BACKUP命令进行数据库备份。
Database backup is taken in DB2 by using the backup command.
其主要思想是对一个完整的数据库备份映像执行一个重定向恢复操作。
The idea is to perform a redirected restore operation on a full database backup image.
您可以使用LISTHISTORY命令查询数据库备份历史。
You can use the LIST HISTORY command to interrogate the database backup history.
进行更改之前，始终对数据库进行备份。
Always make a backup of your database before you make changes.
运行数据库的脱机备份。
通常数据库的备份过程比文件系统来得简单。
Often the backup process is easier for databases than for a file system.
通常，只有在丢失重要数据时，才会认真考虑数据库的备份和恢复。
Backup and recovery of databases are often not considered seriously until vital data is lost.
所有的东西都保存在RAM里，而数据库只是用作备份。
Everything is kept in RAM and the database is just a backup.
每个数据库的备份副本将存储在
要执行数据库级联机备份，可以发出以下命令。
备份这个数据库。
用好的备份映像联机恢复数据库。
如何备份和恢复默认数据库？
像前面解释的那样，使用backup命令备份数据库。
Backup the database using the backup command as explained previously.
能够从表空间备份映像中重新构建数据库。
The ability to rebuild databases from table space backup images.
RMAN将备份已经在数据库中使用的所有数据块。
RMAN will backup all data blocks that have ever been in use in database.
按以下步骤从以前的备份恢复数据库数据。
To restore database data from a previous backup, follow these steps.
对于任何数据库管理系统来说，备份和恢复功能是确保数据可恢复性的关键。
Backup and restore capabilities are key to ensuring data recoverability for any database management system.
后面的这种情况并不是原始数据库的备份和恢复。
This latter scenario is not a complete backup and restore of the original database.
使用备份副本恢复数据库。
然后需要使用BACKUP命令备份数据库。
Next you need to back up the database using the BACKUP command.
dump命令也可以用于备份数据库表。
The.dump command can also be used to back up a database table.
关闭数据库，备份所有数据以及所有日志和控制文件。
Shut the database down and back up all data and all log and control files.
在恢复时，将数据库目录替换为备份目录。
To restore, replace your database directory with the backup directory.
接下来通过运行tdbbackup account_policy.tdb 来备份帐户策略数据库。
Next, the account policy database is backed up by running tdbbackup account_policy.tdb.
信息的备份策略可与数据库的备份策略保持一致。
The backup strategy for the information can be aligned with database backup strategies.
备份数据库。
应用推荐