What is bladelogic DB? Is it MS-SQL or oracle?
I was facing the same issue wit 8.2 version bladelogic, I have decommissioned from back end database.
Bad idea! This is not the proper way to handle this.
Most likely there are hidden components involved with this. Open a ticket with support, there was some work done on this for another customer recently and the issue can be reviewed to confirm this is the same and most likely the remediation provided.
Do not make changes directly in the schema without first checking with engineering, there are too many dependencies and downstream effects.
repost of my answer on the other thread:
What is happening here is that you are trying to decomission a server. this will delete all components associated w/ the server. the role running the decomission lacks the permissions to delete one or more components associated w/ this server. now, it's pretty likely that this particular component is not visible in the gui - asset based audit and snapshot jobs will create hidden components when they are run and whatever permissions are granted by the default object permission template in the role running the job will be applied and cannot be modified laster.
so in this case the only thing we can do is run some sql and manually flag those components as deleted. can you please open up a support case for this so we can walk you through that ?
we are working on a fix for this issue also.