题目
题目

HADM3740/HADM6740 Relational Model Quiz

多项选择题

Which of the following from an E-R diagram get their own relations (tables)? Choose all that apply.

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标准答案
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思路分析
When mapping an ER diagram to a relational schema, each construct is translated according to established rules, and understanding those rules helps determine which elements yield their own tables. Option 1: Entity sets. In the classic mapping, an entity set becomes its own relation (table) because it represents a distinct collection of objects with the same attributes; the table will ......Login to view full explanation

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