sej2008 (9/1/2014)
I make changes in datatbase and before restoring take last log backupBackup log db1
to disk='c:\myfolder\Taillog.trn'
That's not a tail-log backup. That's just a normal log backup. It doesn't have the option specified that would make it a tail log backup (calling it one doesn't make it so)
The message is perfectly correct, no tail log backup has been taken.
See BACKUP LOG in books online for the details of all the options. There's a section in there on tail log backups.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability