试给出三个实际部门的E－R图，要求实体型之间分别具有一对一、一对多、多对多各种不同的联系。 -题库考试答案搜索网

试给出三个实际部门的E－R图，要求实体型之间分别具有一对一、一对多、多对多各种不同的联系。

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2023-03-08 15:36

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正确答案

一对一联系的实例：职工与工资，学生与学籍一对多联系的实例：住宿与学生，工作单位与教师多对多联系的实例：学生与借阅图书，学生与选课，教师与任课。

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标签：计算机基础计算机科学技术大学试题工学

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