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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.

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出自：Oracle认证

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