题海让大学四年没有难题
白天模式登陆

题目详情

判断题 the mapping cardinality of entity-sets students and courses is one-to-many mapping

A. 正确

B. 错误

数据库原理与应用(Database Theory and Application)课程封面

学科：数据库原理与应用(Database Theory and Application)

时间：2023-11-19 06:58:31

相关题目

相关作业

题目1
判断题
Every entity in the entity-set can has different set of attributes
A. 正确B. 错误
题目2
判断题
Relationships can not have attributes
A. 正确B. 错误
题目3
判断题
The basis for distinguishing between different entities is NAME
A. 正确B. 错误
题目4
判断题
the mapping cardinality of entity-sets students and courses is one-to-many mapping
A. 正确B. 错误
题目5
判断题
Entity refers to something that exists objectively in the real world. Conceptual things cannot be called entities
A. 正确B. 错误
Copyright © 2022 津ICP备2021001502号