Oracle : Ошибка ORA-01093

"ALTER DATABASE CLOSE only permitted with no sessions connected"
*Cause: There is at least one more session other than the current one
logged into the instance. ALTER DATABASE CLOSE is not permitted.
*Action: Find the other sessions and log them out and resubmit the command

Попробовать перевести

Поискать эту ошибку на форуме