powershell - 使用PowerShell和SMO库从.BAK文件创建新数据库

Question

我正在尝试使用powershell从.bak文件创建一个新的SQL Server数据库。

这是我的脚本:

TRY
{
    [System.Reflection.Assembly]::LoadWithPartialName('Microsoft.SqlServer.SMO') | out-null 
    [System.Reflection.Assembly]::LoadWithPartialName('Microsoft.SqlServer.SmoExtended') | out-null
    $servername = "MyServer\MyServerInstance"
    $datapath= "E:\SQLData\MyNewDataBase"
    $logpath= "E:\SQLLogs\MyNewDataBase"
    $path= "\\MyServer\BKPFolder\"
    $server = new-object("Microsoft.SqlServer.Management.Smo.Server") $servername
    $folderitem=Get-ChildItem $path -filter *.bak -rec

    foreach($bkfiles in $folderitem)
    {
        $dbRestore = new-object("Microsoft.SqlServer.Management.Smo.Restore")
        $files = $path+$bkfiles.Name
        $backupFile = $files
        $dbRestore.Devices.AddDevice($backupFile, [Microsoft.SqlServer.Management.Smo.DeviceType]::File)
        $dbRestoreDetails = $dbRestore.ReadBackupHeader($server)
        $dbFileList= $dbRestore.ReadFileList($server)

        foreach ($row in $dbFileList)
        {
             $FileType = $row["Type"].ToUpper()

             If ($FileType.Equals("D")) 
             {
                 $DBLogicalName = $Row["LogicalName"]
             }

             ELSEIf ($FileType.Equals("L")) 
             {
                 $LogLogicalName = $Row["LogicalName"]
             }
        }

        $dbRestoreFile = new-object("Microsoft.SqlServer.Management.Smo.RelocateFile") 
        $dbRestoreLog = new-object("Microsoft.SqlServer.Management.Smo.RelocateFile")

        $dbRestoreFile.LogicalFileName = $DBLogicalName 
        $dbRestoreFile.PhysicalFileName =$datapath +  "\" + $DBLogicalName + ".mdf" 

        $dbRestoreLog.LogicalFileName =   $LogLogicalName 
        $dbRestoreLog.PhysicalFileName =  $logpath +  "\" + $LogLogicalName + ".ldf" 

        $dbRestore.RelocateFiles.Add($dbRestoreFile) 
        $dbRestore.RelocateFiles.Add($dbRestoreLog)                

        $dbRestore.Database = "MyNewDataBase"
        $dbRestore.NoRecovery = $false
        $dbRestore.Action = "DataBase"
        $dbRestore.FileNumber = 1;
        $dbRestore.ReplaceDatabase = $false;

        $dbRestore.SqlRestore($server)  
   }
} catch     {
    "Database restore failed:`n`n " + _.Exception.GetBaseException().Message
}

运行此代码时，出现以下错误:

Directory lookup for the file "E:\SQLData\MyNewDataBase\OLDDataBase_Data.mdf" failed with the operating system error 2(The system cannot find the file specified.).

File 'OLDDataBase_Data' cannot be restored to 'E:\SQLData\MyNewDataBase\OLDDataBase_Data.mdf'. Use WITH MOVE to identify a valid location for the file.

Problems were identified while planning for the RESTORE statement. Previous messages provide details.
RESTORE DATABASE is terminating abnormally.

看来我的脚本正在尝试从旧数据库中查找 .mdf和 .ldf文件。但是我只有旧数据库中的 .bak文件。

我想念什么？

谢谢。

Answer 1

经过大量的研究和尝试，我终于恢复了数据库。
这为我工作:

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SMO") | Out-Null
    [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                              

    #Define o novo local dos arquivos de mdf e ldf
    $RelocateData = New-Object Microsoft.SqlServer.Management.Smo.RelocateFile("OldDataBase_Data", "E:\SQLData\MyNewDataBase_DATA.mdf")
    $RelocateLog = New-Object Microsoft.SqlServer.Management.Smo.RelocateFile("OldDataBase_Log", "E:\SQLLogs\MyNewDataBase_LOG.ldf")

    #Executa a restauração
    Restore-SqlDatabase -ServerInstance "MyServer\MyServerInstance" -Database "MyNewDataBase" -BackupFile "\\BackupFolder\OldDataBase.bak" -RelocateFile @($RelocateData,$RelocateLog) -NoRecovery
    Restore-SqlDatabase -ServerInstance "MyServer\MyServerInstance" -Database "MyNewDataBase" -BackupFile "\\BackupFolder\OldDataBase.trn" -RestoreAction Log -NoRecovery