ORA-00262: current log string of closed thread string cannot switch
Cause: The log cannot be cleared or manually archived because it is the current log of a closed thread, and it is not possible to switch logs so another log is current. All other logs for the thread need to be archived, or cleared, and cannot be reused.
Action: Archive another log in the same thread first, or complete the clearing. See attached errors for the reason the switch cannot be completed.
