SQL SMO Objects SqlRestore Method (ReadFileList) - sql

Question

Good afternoon all-
I've searched around quite a bit, and found a few good resources on how to dynamically determine the names of the logical data file names contained within an and SQL .bak file. The SMO method Im working with requires that I pass the ServerName, however my requirement calls for passing the actual file path to the backup. I can get what I need in T-SQL, but I'd really like to determine a way to do it leveraging SMO's. Below is the T-SQL which gets me the information I require:
RESTORE FILELISTONLY
FROM N'C:\Directory\File.bak'
WITH FILE = 1
Unfortunately SqlRestore.ReadFileList(ServerName) will not work, as the backup set has not been restored to a server yet. Essentially I need this information so I can pass it to Restore.RelocateFiles.Add. I'm actually a DBA just dabbling in C#, so if you need more information just let me know and I will try to fill in the gaps. Thanks for any assistance!

Answer 1

The Powershell script below shows how you can read a backup file based on a file path:
$ServerName="SERVER\MYSQLSERVER"
$svrConn = new-object Microsoft.SqlServer.Management.Common.ServerConnection
$svrConn.ServerInstance=$secondaryServerName
$svrConn.LoginSecure = $true
$svr = new-object Microsoft.SqlServer.Management.Smo.Server ($svrConn)
$fullResotrePath = "\\Path\MyDatabase.bak"
$res = new-object Microsoft.SqlServer.Management.Smo.Restore
$res.Devices.AddDevice($fullRestorePath, [Microsoft.SqlServer.Management.Smo.DeviceType]::File)
$dt = $res.ReadFileList($svr)
foreach($r in $dt.Rows)
{
foreach ($c in $dt.Columns)
{
Write-Host $c "=" $r[$c]
}
}