36. " 性别限制在男性" 这种约束属于数据库状态约束中的（）约束。 A、联系结构 B、属性结构 C、属性值域 D、属性唯一性 - 查题网

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中国石油大学 / 中石油

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36. " 性别限制在男性" 这种约束属于数据库状态约束中的（）约束。
   A、联系结构
   B、属性结构
   C、属性值域
   D、属性唯一性

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中石油

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