试题详情
- 单项选择题 Examine the following ALTER command: SQL> ALTER DISKGROUP dgroup1 UNDROP DISKS; What is the purpose of the command?（）
A、It cancels all pending disk drops within the disk group
B、It restores disks that are being dropped as the result of a DROP DISKGROUP operation
C、It mounts disks in the disk group for which the drop-disk operation has already been completed
D、It restores all the dropped disks in the disk group for which the drop-disk operation has already been completed
E、It adds previously dropped disks back into the disk group
- A
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