• Artykuł

Metoda Backup.SqlBackupAsync

Wykonuje operacji wykonywania kopia zapasowa bazy danych asynchronicznie określone przez właściwości Backup obiektu użytego.

Przestrzeń nazw:  Microsoft.SqlServer.Management.Smo
Zestaw:  Microsoft.SqlServer.SmoExtended (w Microsoft.SqlServer.SmoExtended.dll)

Składnia

'Deklaracja
Public Sub SqlBackupAsync ( _
    srv As Server _
)
'Użycie
Dim instance As Backup
Dim srv As Server

instance.SqlBackupAsync(srv)

public void SqlBackupAsync(
    Server srv
)

public:
void SqlBackupAsync(
    Server^ srv
)

member SqlBackupAsync : 
        srv:Server -> unit 

public function SqlBackupAsync(
    srv : Server
)

Parametry

Uwagi

Do wykonania operacji wykonywania kopia zapasowa bazy danych przy użyciu SQL Server obiektów zarządzania (SMO) aplikacja określa proces operacji przez ustawienie Backup Właściwości obiektu, a następnie wywołuje SQLBackup(Server) metoda.

Przykłady

VB

'Connect to the local, default instance of SQL Server.
Dim srv As Server
srv = New Server
'Reference the AdventureWorks2008R2 database.
Dim db As Database
db = srv.Databases("AdventureWorks2008R2")
'Store the current recovery model in a variable.
Dim recoverymod As Integer
recoverymod = db.DatabaseOptions.RecoveryModel
'Define a Backup object variable. 
Dim bk As New Backup
'Specify the type of backup, the description, the name, and the database to be backed up.
bk.Action = BackupActionType.Database
bk.BackupSetDescription = "Full backup of AdventureWorks2008R2"
bk.BackupSetName = "AdventureWorks2008R2 Backup"
bk.Database = "AdventureWorks2008R2"
'Declare a BackupDeviceItem by supplying the backup device file name in the constructor, and the type of device is a file.
Dim bdi As BackupDeviceItem
bdi = New BackupDeviceItem("Test_Full_Backup1", DeviceType.File)
'Add the device to the Backup object.
bk.Devices.Add(bdi)
'Set the Incremental property to False to specify that this is a full database backup.
bk.Incremental = False
'Set the expiration date.
Dim backupdate As New Date
backupdate = New Date(2006, 10, 5)
bk.ExpirationDate = backupdate
'Specify that the log must be truncated after the backup is complete.
bk.LogTruncation = BackupTruncateLogType.Truncate
'Run SqlBackup to perform the full database backup on the instance of SQL Server.
bk.SqlBackupAsync(srv)

PowerShell

$srv = new-Object Microsoft.SqlServer.Management.Smo.Server("(local)")
$db = New-Object Microsoft.SqlServer.Management.Smo.Database
$db = $srv.Databases.Item("AdventureWorks2008R2")
$recoverymod = $db.DatabaseOptions.RecoveryModel
$bk = new-object Microsoft.SqlServer.Management.Smo.Backup
$bk.Action = [Microsoft.SqlServer.Management.Smo.BackupActionType]::Database
$bk.BackupSetDescription = "Full backup of AdventureWorks2008R2"
$bk.BackupSetName = "AdventureWorks2008R2 Backup"
$bk.Database = "AdventureWorks2008R2"
$bdi = new-object Microsoft.SqlServer.Management.Smo.BackupDeviceItem("Test_Full_Backup1", [Microsoft.SqlServer.Management.Smo.DeviceType]::File)
$bk.Devices.Add($bdi)
$bk.Incremental = $FALSE
$backupDate = new-object System.DateTime(2006, 10, 5)
$bk.ExpirationDate = $backupDate
$bk.LogTruncation = [Microsoft.SqlServer.Management.Smo.BackupTruncateLogType]::Truncate
$bk.SqlBackupAsync($srv)
Write-Host "Full backup complete."