Sql-server – Error in restore database

Has this ever worked?

RESTART is only specified when you want to continue an interrupted restore. If you can't change the SQL, then you can only somehow break a first restore to generate an error condition.

Because of this, you can't be sure that it's the same on SQL 2005 unless it happens every time. Or they changed behaviour.

Try this:

CREATE DATABASE foo;
GO
CREATE DATABASE bar;
GO
BACKUP DATABASE foo TO DISK = 'c:\temp\x.bak';
BACKUP DATABASE bar TO DISK = 'c:\temp\x.bak';
GO
RESTORE HEADERONLY FROM DISK = 'c:\temp\x.bak';

Relevant columns for this scenario:

Position  DatabaseName
--------  ------------
1         foo
2         bar

To restore foo, whether it exists or not:

RESTORE DATABASE foo FROM DISK = 'c:\temp\x.bak'
  WITH FILE = 1, REPLACE;

To restore bar, whether it exists or not:

RESTORE DATABASE bar FROM DISK = 'c:\temp\x.bak'
  WITH FILE = 2, REPLACE;

If you don't specify WITH FILE, you will get a slew of errors, depending on whether the database in Position = 1 already exists.

The lessons here:

• do not use common and generic names for backup files - name them for the database they represent and keep them separate.
• use WITH INIT if you expect a backup file to only ever contain one copy of a backup.
• understand what is in your backup by first running RESTORE HEADERONLY and/or RESTORE FILELISTONLY.

If you show us those two columns from the output of RESTORE HEADERONLY and what database you are actually trying to restore, we can provide you with a specific command that should work.