Which two statements are true when row archival management is enabled?
A.The ORA_ARCHIVE_STATE column visibility is controlled by the ROW ARCHIVAL VISIBILITY session parameter. B.The ORA_ARCHIVE_STATE column is updated manually or by a program that could reference activity tracking columns to indicate that a row is no longer considered active. C.The ROW ARCHIVAL VISIBILITY session parameter defaults to active rows only. D.The ORA_ARCHIVE_STATE column is visible if referenced in the select list of a query. E.The ORA_ARCHIVE_STATE column is updated automatically by the Oracle Server based on activity tracking columns to Indicate that a row is no longer considered active.正确答案BD
