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A single transaction may use multiple undo segments simultaneously.
B:Undo segments can wrap around to the first extent when a transaction fills the last extend of the undo segment.
C:Undo segments can extend when a transaction fills the last extent of the undo segment.
D:Undo segments can be stored in the SYSTEM tablespace.
E: Undo segments can be stored in the SYSAUX tablespace.RMAN> BACKUP INCREMENTAL LEVEL 1 FOR RECOVER OF COPY WITH TAG WEEKLY DATABASE;
Which statement is true about the execution of the command?
选项: A:It returns an error because there is no level 0 backup available for new data files.
B:It performs an image copy backup of new data files, and a level 1 incremental backup of all other data files.
C:It performs a level-0 backup of all data files including those that belong to the new tablespace.
D:It performs an image copy backup of all data files including those that belong to the new tablespace
E:It performs a backup as a backup set of all data files including those that belong to the new tablespace.