In ERD model, the relationship between two entities is represented by a:
Correct answer: A. Diamond symbol
- A. Diamond symbol
- B. Rectangular box
- C. Oval symbol
- D. Line
Explanation
In an entity-relationship diagram (ERD), a diamond symbol represents the relationship between two entities. This diamond connects the rectangular boxes that represent the entities themselves. The diamond can also contain additional information about the relationship, such as cardinality (how many instances of one entity can relate to how many instances of another entity).
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