DATABASE FUNDAMENTALS
DATA WAREHOUSING AND DATA MINING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is a relationship?
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Link between entities
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A person, place, or thing
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Property or characteristic of an entity
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Weak entity
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Explanation:
Detailed explanation-1: -Any association between two entity types is called a relationship. Entities take part in the relationship. It is represented by a diamond shape. For example, A teacher teaches students.
Detailed explanation-2: -There are three types of relationships that can exist between the entities. They are the binary, recursive and the ternary relationship. A binary relationship represents the association between two entities.
Detailed explanation-3: -There are five types of relations in the databases: one-to-one, one-to-many, many-to-one, many-to-many, and self-referencing relationships.
There is 1 question to complete.