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04/02/2012

Devices Property

未來的 Microsoft SQL Server 版本將移除這項功能。請避免在新的開發工作中使用這項功能，並規劃修改目前使用這項功能的應用程式。

The Devices property specifies one or more backup devices used as a database backup target or restore source.

語法

object
.Devices [=value]

Parts

object
An expression that evaluates to an object in the Applies To list
value
A SQL Distributed Management Objects (SQL-DMO) multistring that specifies backup devices by name

Data Type

String

Modifiable

Read/write

Prototype (C/C++)

HRESULT GetDevices(SQLDMO_LPBSTR pRetVal);
HRESULT SetDevices(SQLDMO_LPCSTR NewValue);

[!附註]

SQL-DMO strings are always returned as OLE BSTR objects. A C/C++ application obtains a reference to the string. The application must release the reference using SysFreeString.

備註

The backup medium for a backup or restore operation is specified using either the Devices, Files, Pipes, or Tapes properties. Only one medium type can be specified for any backup or restore operation, but multiple media (of the same type) may be specified.

Set the Devices property to specify one or more Microsoft SQL Server backup devices as the backup medium. Specify more than a single database file to stripe the backup operation or restore from a striped backup set.

For more information about setting multistring parameters, see Using SQL-DMO Multistrings.