>Hi,
>I updated wrong data to all of the records in my table. It has been committed. My backup is about week ago. Any command or 3rd party tool that allow me to "rollback" to previous stage based on SQL transaction log?

If you are using the Full Recovery model on the database, and you can back up the transaction log since your week-old backup, you might be able to use SQL Server itself to recover the data to a point in time before before the bad data got committed.

See:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/adminsql/ad_bkprst_2l9s.asp
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/howtosql/ht_7_backpc_6pv6.asp

Chris