利用 PowerShell 自動 Restore 數據庫

#============================================================
# Restore a Database using PowerShell and SQL Server SMO
# Restore to the same database, overwrite existing db
# Donabel Santos
# 2010.10.16 paulus: modified
#============================================================

#clear screen
cls

#load assemblies
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SMO") | Out-Null
#Need SmoExtended for backup
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SmoExtended") | Out-Null
[Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.ConnectionInfo") | Out-Null
[Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SmoEnum") | Out-Null

#get backup file
#you can also use PowerShell to query the last backup file based on the timestamp
#I'll save that enhancement for later
$backupFile = "C:MSSQLBackup" + $args[0] + ".bak"

#we will query the db name from the backup file later

$server = New-Object ("Microsoft.SqlServer.Management.Smo.Server") "(local)"
$backupDevice = New-Object ("Microsoft.SqlServer.Management.Smo.BackupDeviceItem") ($backupFile, "File")
$smoRestore = new-object("Microsoft.SqlServer.Management.Smo.Restore")

#settings for restore
$smoRestore.NoRecovery = $false;
$smoRestore.Partial = $false
$smoRestore.ReplaceDatabase = $true;
$smoRestore.Action = "Database"

#show every 10% progress
$smoRestore.PercentCompleteNotification = 10;

$smoRestore.Devices.Add($backupDevice)

#read db name from the backup file's backup header
$smoRestoreDetails = $smoRestore.ReadBackupHeader($server)

#display database name
"Database Name from Backup Header : " + $smoRestoreDetails.Rows[0]["DatabaseName"]

$smoRestore.Database = $smoRestoreDetails.Rows[0]["DatabaseName"]

#restore
$smoRestore.SqlRestore($server)

#2010.10.16 paulus: set owner to sa
$db = New-Object Microsoft.SqlServer.Management.Smo.Database
$db = $server.Databases.Item($smoRestoreDetails.Rows[0]["DatabaseName"])
$db.SetOwner("sa", $TRUE)

"Done"