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There is a need to relate two entities in the data structure: Employee and Skill. Employees can have multiple skills, and a single skill can relate to multiple employees. What kind of relationship would these entities have, and what is the minimum number of tables required to implement the design, according to Appian best practices?
A. One-to-many; 2 tables
B. Many-to-many; 2 tables
C. Many-to-one; 2 tables
D. Many-to-many; 3 tables
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Appian Senior Developer ACD201 PDF Questions and Answers
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Appian Senior Developer ACD201 PDF Questions and Answers

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Ed Verified user icon

há 4 meses

Para entender a relação entre as entidades "Employee" (Funcionário) e "Skill" (Habilidade), vamos analisar a descrição: - Um funcionário pode ter várias habilidades. - Uma habilidade pode estar relacionada a vários funcionários. Isso caracteriza uma relação do tipo "muitos para muitos" (many-to-many). Para implementar essa relação em um banco de dados, geralmente precisamos de uma tabela adicional que funcione como uma tabela de junção (ou tabela associativa) para conectar as duas entidades. Portanto, para implementar essa relação, precisamos de: 1. Uma tabela para "Employee". 2. Uma tabela para "Skill". 3. Uma tabela de junção que relaciona "Employee" e "Skill". Assim, o número mínimo de tabelas necessárias para implementar essa relação, de acordo com as melhores práticas, é 3. A alternativa correta é: D. Many-to-many; 3 tables.

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Appian Senior Developer ACD201 PDF Questions and Answers
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Appian Senior Developer ACD201 PDF Questions and Answers

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