SQL Server 2005: How to restore databsae from .DBK file

Hello Everybody,

I do not have much of a experience in DB creation, backup/restoration. We have received some set of files from customer to work on his DB and one of the file is .DBK and it is of size 20GB.

So based on the size it appears to be the main database.

When i looked on the net it says .DBK file could be DBASE backup (which could not be our case) or SQL backup.

When I tried to do RESTORE FILELISTONLY with that file then I got the following error message:

The media family on device 'db_200804031804.DBK' is incorrectly formed. SQL Server cannot process this media family. Chances are file could be corrupt.


My questions are:
1. Could it be a valid SQL DB backup file??
2. And if yes then is there different way to restore such files?

Any help is greatly appriciated.

Thanks,
Resham
reshamAsked:
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Sander StadSysteemontwikkelaar, Database AdministratorCommented:
Could you check if the RESTORE VERIFYONLY works. Maybe your file is corrupt.
 
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Cedric_DCommented:
Install SQL 2005 SP2.

Ask customer, maybe it's not SQL2005 backup.
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reshamAuthor Commented:
Thanks for replying so promptly.

sstad,
I tried RESTORE VERIFYONLY as well and gives same error.

Cedric_D,
I cannot contact customer directly as there are lots of layers in between but the our customer support person says it is SQL backup and he could restore from it. I am awaiting his furthur reply as well but thought of checking on this site as there are more knowledgable people around here.

Thanks
Resham
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reshamAuthor Commented:
Hi Guys,

Thanks for your replies but I have got the answer.
Actually it is the backup of SQL Sever but taken by 'Litespeed for SQL Server' and I will have to restore using the same.

Thanks once again.

About the points, I think I should take these points to me only. If not possible then I will divide points between you two.

Resham
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Cedric_DCommented:
Give them to the customer who courtesely unveils mysterious file format.
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