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- 多项选择题Which two are valid locking levels that are used by transactions in an Oracle database?()
A、row level
B、block level
C、object level
D、schema level
E、database level
- A,C
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A、row level
B、block level
C、object level
D、schema level
E、database level
关注下方微信公众号,在线模考后查看