试题详情
- 多项选择题下列关于序列的使用场景说法正确的是()。
A、使用序列代替多个字段的主键标识记录,以简化子表对于父表的引用关系
B、需要产生诸如此类的单据流水号,可以借助序列来完成
C、如果有多个用户同时向序列提出申请,可能会生成两个相同的整数
- A,C
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