Detaching and retiring audit store databases
All of the information stored in audit store databases that are attached to an audit installation is available for queries and reports and can be viewed in the session player. When the information in an attached database is no longer needed, you can detach the database from the installation. You cannot detach a database while it is the active database.
After a database that has been the active database is made an attached or detached database, it is considered a retired or decommissioned database. It cannot be used as the active database again.