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View the Exhibit and examine the undo tablespace attributes.    Your database instance is experiencing a large volume of transactions from non-DBA users in the last onehour. The undo tablespace UNDOTBS1 is full with transactions and no transaction was committed morethan one hour ago. The database has two more undo tablespaces.  What happens to the new DML operations in this scenario（）
A:The DML commands will fail.
B:The undo data generated by the DML is stored in one of the two other undo tablespaces.
C:The undo data generated by the DML will overwrite the extents that contain committed undo data. 
D:The undo data generated by the DML is stored in the SYSTEM undo segment of the SYSTEM

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出自：Oracle认证

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