Question

I have make Some Differential Backup for a Database, which will take the Backup for the Last Modified Data which will be appended to the previously happend Full Backup file. Now, when i am trying to take Restore of the .bak file entire Data is getting Backup, is it possible to take the Backup only the Last Backup taken data i wanted? Can, any one help me on this.

private void RestoreDataBase(Server MyServer, Database MyDataBase, string DevicePath, string Type)
     {
         try
         {
             progressBar1.Value = 0;
             Restore restoreDB = new Restore();
             restoreDB.Action = RestoreActionType.Database;
             restoreDB.Database = MyDataBase.Name;
             restoreDB.Devices.AddDevice(DevicePath, DeviceType.File);
             restoreDB.ReplaceDatabase = true;
             restoreDB.NoRecovery = true;
             restoreDB.PercentComplete += new PercentCompleteEventHandler(rstDatabase_PercentComplete);
             restoreDB.Complete += new ServerMessageEventHandler(rstDatabase_Complete);
             restoreDB.SqlRestore(MyServer);
         }
         catch (Exception ex)
         {
             WriteToListView(ex.Message.ToString());
             writetoLog(ex.Message.ToString());
         }
     }

The above is the coding i am using, and the database is Sql Server 2008, The coding i am using for Differential Backup is as follows

private void BackupDataBaseDifferential(Server MyServer, Database MyDataBase, string DestinationPath, string Type)
     {
         try
         {
             WriteToListView("Taking the Differential Backup for " + MyDataBase.Name);
             Backup backDB = new Backup();
             backDB.Action = BackupActionType.Database;
             backDB.Database = MyDataBase.Name;
             backDB.Devices.AddDevice(DestinationPath, DeviceType.File);
             backDB.BackupSetName = "Sql Database Backup Differential";
             backDB.BackupSetDescription = "Sql Database Backup - DifferentialType";
             backDB.ExpirationDate = DateTime.Now.AddDays(5);
             backDB.Initialize = false;
             backDB.Incremental = true;
             if (Type == "Manual")
             {
                 progressBar1.Value = 0;
                 backDB.PercentComplete += new PercentCompleteEventHandler(bd_PercentComplete);
                 backDB.Complete += new ServerMessageEventHandler(bd_Complete);
             }
             else if (Type == "Automatic")
             {
                 backDB.PercentComplete += CompletionStatusInPercent;
                 backDB.Complete += Backup_Completed;
             }
             backDB.SqlBackup(MyServer);
         }
         catch (Exception ex)
         {
             WriteToListView(ex.Message.ToString());
             writetoLog(ex.Message.ToString());
         }
     }

So, if i use the above coding the last data which is modified in the Database (which was already taken Backup Fully previously) will be taken. So, my problem is when i use the RestoreDataBase() method the entire Database is getting restore, bcoz all the Full Backup data and the Differential Backup data will be in only one file ex: Sample.bak. If i want only the last modified data is it not possible to take by Specifying the Date of the Data modified to the Database?

Answer 1

Maybe silly, but if you export your db as .sql, when you need to restore only some data, you can read file and “filter” rows to restore…
Anyway there is another thread talking about this, take a look here.