Oracle OCP 082知识
剩余时间：
第 72 题 (多选题)：
Which three are benefits of using temp UNDO when performing DML on global temporary tables.
A. It reduces I/Os to the SYSTEM tablespace.
B. It reduces the amount of redo generated.
C. It reduces the amount of UNDO stored in the UNDO tablespace.
D. It permits DML on Global temporary tables even if the database is opened read only.
E. It reduces I/Os to the SYSAUX tablespace.
显示答案
正确答案：
B,C,D
解析：
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