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- Defining a logical backup device involves assigning a logical name to a physical device. 定义逻辑备份设备涉及为物理设备分配逻辑名称。
- Logical backup devices are especially useful for identifying tape backup devices. 逻辑备份设备对于标识磁带备份设备尤为有用。
- The following example creates a logical backup device, AdvWorksData, for a backup disk file. 以下示例为某备份磁盘文件创建了名为AdvWorksData的逻辑备份设备。
- This may be a local tape drive or a tape-based logical backup device created for the database. 这可能是一个为该数据库创建的本地磁带机或磁带备份设备。
- This may be a system file or a disk-based logical backup device created for the database. 这可能是一个为该数据库创建的系统文件或磁盘备份设备。
- The logical device name must be unique among all the logical backup devices on the server instance. 逻辑设备名称在服务器实例上的所有逻辑备份设备中必须是唯一的。
- Defining a new logical backup device that uses the original logical device name but maps to a different physical backup device. 定义新的逻辑备份设备,新设备使用原来的逻辑设备名称,但映射到不同的物理备份设备。
- For example, the following statement backs up the AdventureWorks database to the AdventureWorksBackups logical backup device. 例如,下面的语句将AdventureWorks数据库备份到AdventureWorksBackups逻辑备份设备。
- In a given BACKUP or RESTORE statement, the logical backup device name and the corresponding physical backup device name are interchangeable. 在给定的BACKUP或RESTORE语句中,逻辑备份设备名称和相应的物理备份设备名称可以互换。
- Changed the example BACKUP and RESTORE statements to specify the physical backup device by using the DISK option, instead of specifying a logical backup device. 使用DISK选项,将BACKUP和RESTORE语句示例更改为指定物理备份设备,而不是指定逻辑备份设备。
- This article provides a group of powerful procedures that allow for schema-level operations such as logical backup, restore, and copy of all objects in a given schema. 本文提供了一组强大的过程,可以执行模式级操作,比如对给定模式中的所有对象进行逻辑备份、恢复和复制。
- After a logical backup device is defined, in a BACKUP or RESTORE command, you can specify the logical backup device instead of the physical name of the device. 定义逻辑备份设备后,您可以在BACKUP或RESTORE命令中指定此逻辑备份设备而不是设备的物理名称。
- This view displays the name of each logical backup device and describes the type and physical file name or path of the corresponding physical backup device. 此视图显示每个逻辑备份设备的名称,并说明了相应物理备份设备的类型、物理文件名或路径。
- Using a logical backup device can help if you plan to write a series of backups to the same path or to a tape device. 如果准备将一系列备份数据写入相同的路径或磁带设备,则使用逻辑备份设备非常有用。
- To Define a Logical Backup Device for a Tape Drive 为磁带机定义逻辑备份设备
- At this point your logic is at fault. 在这一点上你的推理是错误的。
- Do you have any backup if this machine fails? 如果这台机器坏了你有备用的吗?
- We should always have a backup plan. 我们应该总是有备用的计划。
- It is logical to assume that they will attend. 按理他们是会出席的。
- Following as a logical conclusion. 必然的作为其逻辑结论随之发生的
