SQL Server Incident - How to audit A client of ours has doubts that a user erased certain information from the database they are using. I know that the database can be audited by having SQL Server Profiler enabled, but in this case, there wasn't any tool enabled to do auditing.

My question is: is there a way to know if some user has committed a transaction on the database without having profiler enabled? Is there any forensic task that can be done to accomplish this?

Thanks.
If you have the full and transaction log backups, you can use a log reading tool like Quest Litespeed or ApexSQL Log Reader. (Disclaimer: I used to work for Quest.) Those read the full backup, then the logs, in order to build a chain of what happened. You can search for transactions by syntax, table name, etc, and generate undo scripts.

Here's the catch, though: if it was a shared login, like a SQL login where multiple people knew the password, you're going to have a tough time pinning down who did it.