In the principles of database, we have the Entity-Relationship Model (ERM). This model deals with various aspects, including relationships and enti...

In the principles of database, we have the Entity-Relationship Model (ERM). This model deals with various aspects, including relationships and entities, which can be understood as a graphical representation. Regarding the ERM, analyze the following sentences: I- Obligatorily, their names are proper nouns. II- In the ERM, the relationship is graphically represented as a diamond. III- Entities are considered the most complex items of attributes. IV- Entities are graphically represented by a rectangle in the ERM. Now, choose the CORRECT alternative:

A) Only sentence I is correct.
B) Sentences II and IV are correct.
C) Sentences I and IV are correct.
D) Only sentence III is correct.

Engenharia de Software I

•

Outros

0

1

Aprendendo Através de Exercícios

17/09/2023

Essa pergunta também está no material:

5 pág.

Avaliação II - Princípios de Banco de Dados

Engenharia de Software I • Centro Universitário Leonardo da VinciCentro Universitário Leonardo da Vinci

Guilherme Costa Grando

💡 1 Resposta

Ed

17.09.2023

A alternativa correta é a letra C) Sentenças I e IV estão corretas. No modelo Entidade-Relacionamento (ERM), os nomes das entidades são representados por retângulos, e não por substantivos próprios. As relações são representadas graficamente por losangos. As entidades são os itens mais complexos, pois possuem atributos associados a elas.

0