单选题:若要在一对多的关联关系中,“一方”原始记录更改后,“多方”自动更改,应启用(  )。

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题目内容:
若要在一对多的关联关系中,“一方”原始记录更改后,“多方”自动更改,应启用(  )。 A.有效性规则
B.级联删除相关记录
C.完整性规则
D.级联更新相关记录

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