How do I make sure alla data is restored using SMO? - sql-server

Question

A restore performed with C# code using SMO objects restores fine when original database is in SIMPLE recovery mode. We got problems with one database where the restore missed all content from a certain table, where all data was inserted late in process. The database showed to be in BULK LOGGED recovery mode. After changing to SIMPLE and doing a new backup, it restored fine, using our code.
We have tried different settings on the restore object, but found none that fixes the problem. We are under the impression that the restoring ignores data in the log.
The basic restore looks like this:
sqlServer = new Server(new ServerConnection(instanceName));
restore = GetRestore();
restore.PercentComplete += PercentCompleteAction;
restore.Complete += CompleteAction;
restore.SqlRestore(sqlServer);
the GetRestore function is basically implemented like this:
restore = new Restore();
var deviceItem = new BackupDeviceItem(backupFileName, DeviceType.File);
restore.Devices.Add(deviceItem);
restore.Database = newDatabaseName;
restore.NoRecovery = false;
restore.Action = RestoreActionType.Database;
restore.ReplaceDatabase = false;
return restore;
There are no error messages - just missing content in one table.
Added try:
I took a guess at the solution below, but it didn't help:
restore.ReplaceDatabase = false;
restore.NoRecovery = true;
restore.Action = RestoreActionType.Database;
restore.SqlRestore(sqlServer);
restore.ReplaceDatabase = true;
restore.NoRecovery = true;
restore.Action = RestoreActionType.Log;
restore.SqlRestore(sqlServer);
restore.ReplaceDatabase = true;
restore.NoRecovery = false;
restore.Action = RestoreActionType.Files;
restore.SqlRestore(sqlServer);

Answer 1

You need select a correct FileNumber in your Log file, see this method can solve your problem:
public static void restaurarBackup(string pathFileBak)
{
SqlConnection conn = new SqlConnection(Connection.getCon());
Server smoServer = new Server(new ServerConnection(conn));
string localFilePath = pathFileBak;
string db_name = "ETrade";
string defaultFolderEtrade = #"C:\ETrade\";
Restore rs = new Restore();
rs.NoRecovery = false;
rs.ReplaceDatabase = true;
BackupDeviceItem bdi = default(BackupDeviceItem);
bdi = new BackupDeviceItem(localFilePath, DeviceType.File);
rs.Devices.Add(bdi);
DataTable dt = rs.ReadFileList(smoServer);
foreach (DataRow r in dt.Rows)
{
string logicalFilename = r.ItemArray[dt.Columns["LogicalName"].Ordinal].ToString();
string physicalFilename = defaultFolderEtrade + Path.GetFileName(r.ItemArray[dt.Columns["PhysicalName"].Ordinal].ToString());
rs.RelocateFiles.Add(new RelocateFile(logicalFilename, physicalFilename));
}
DataTable backupHeaders = rs.ReadBackupHeader(smoServer);
rs.FileNumber = Convert.ToInt32(backupHeaders.AsEnumerable().Max(backupInfo => backupInfo["Position"]));
rs.Database = db_name;
smoServer.KillAllProcesses(rs.Database);
Microsoft.SqlServer.Management.Smo.Database db = smoServer.Databases[rs.Database];
db.DatabaseOptions.UserAccess = DatabaseUserAccess.Single;
rs.SqlRestore(smoServer);
db = smoServer.Databases[rs.Database];
db.SetOnline();
smoServer.Refresh();
db.Refresh();
}
If you want look backups in your Log file, see this query:
SELECT database_name, name, backup_start_date,
backup_finish_date, datediff(mi, backup_start_date, backup_finish_date) [tempo (min)],
position, first_lsn, last_lsn, server_name, recovery_model,
type, cast(backup_size/1024/1024 as numeric(15,2)) [Tamanho (MB)], B.is_copy_only
FROM msdb.dbo.backupset B