Which statement is true regarding online redefinition for the migration of BasicFile LOBs to SecureFile LOBs?()
- A、It cannot be done in parallel.
- B、It can be done at the table level or partition level.
- C、It does not require additional storage because the operation is done online.
- D、Local and global indexes are maintained automatically during the operation.
正确答案:B
答案解析:有
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