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Modeling Data in the Organization
A rectangle represents which of the following in an ERD?
Attribute
Entity
Optional One
Relationship
Correct Answer:
Entity
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Modeling Data in the Organization
Which of the following conditions should exist if you want to convert a relationship to an associative entity?
A relationship is which of the following?
Output reports should be included as part of an ERD.
A relationship is an association representing the interaction between attributes.
A binary relationship is a relationship between two or more entities.
Multiple and binary relationships are the same thing.
Cardinality specifies the number of instances of one entity that can be associated with each instance of another entity.
No two attributes of the same entity type should have the same name.
A derived attribute is an attribute whose values can be calculated from a related relationship.
A strong entity is an entity whose existence depends on some other entity type.
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