Homework Help: Questions and Answers: In relational database modeling operators that illustrate an association between two entities are known as which of the following?
a. Relationship
b. Master data
c. Structured query
d. Business rule
Answer:
First, let’s understand the question: We need to identify operators that show an association between two entities in relational database modeling.
Given Options: Step by Step Answering
a) Relationship
- A relationship in a relational database refers to the association between two entities (like a customer and an order). This is the most likely answer since relationships in databases illustrate how entities are connected.
b) Master data
- Master data refers to the core, non-transactional data entities (like products, customers, suppliers) within a business. It doesn’t describe associations but rather foundational data elements.
c) Structured query
- A structured query refers to a query written in SQL (Structured Query Language) to retrieve or manipulate data. It’s not related to illustrating associations between entities.
d) Business rule
- A business rule defines constraints or conditions under which a business operates. It’s not directly related to modeling associations between database entities.
Final Answer:
Based on the above analysis, the correct answer is:
a) Relationship
In relational database modeling, relationships are indeed the operators used to illustrate associations between entities. They show how different tables (entities) in a database are connected to each other, which is crucial for organizing and retrieving data effectively.
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