Devices Property
Questa funzionalità verrà rimossa in una delle prossime versioni di Microsoft SQL Server. Evitare di utilizzare questa funzionalità in un nuovo progetto di sviluppo e prevedere interventi di modifica nelle applicazioni in cui è attualmente implementata.
The Devices property specifies one or more backup devices used as a database backup target or restore source.
Sintassi
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);
[!NOTA] 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.
Osservazioni
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.