I have a database on SQL server 2008 that's stuck in single user mode. I put it in that mode to do a restore. But the restore failed because it could not obtain exclusive access. When I go in to kill the SPID, I see that it's a system process spid < 20. There are multiple system spid's that are blocking each other and won't let me access the database. I tried to take the database offline, detach it, delete it. All of those failed. Is there any other way for me to gain access back into the database?