试题详情
- 单项选择题In which situation is the UNDO_RETENTION parameter be ignored， even if it is set to a value（）
A、When the data file of the undo tablespace is autoextensible
B、When there are more than one undo tablespaces available in the database
C、When the undo tablespace is of a fixed size and retention guarantee is not enabled
D、When the undo tablespace is autoextensible and retention guarantee is not enabled
- C
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