(Top QUALITY 2024/2025 EXAM REVIEW) WGU C170 Chapter 2, Exam Review. 100% Accurate. Rated A+ binary relationship - -An ER term for an association (relationship) between two entities. For example, PROFESSOR teaches CLASS. cardinality - -An attribute tha
WGU C170 Chapter 2, Exam Review. 100% Accurate. Rated A+ binary relationship - -An ER term for an association (relationship) between two entities. For example, PROFESSOR teaches CLASS. cardinality - -An attribute that can be further subdivided to yield additional attributes. For example, a phone number such as may be divided into an area code (615), an exchange number (898), and a four-digit code (2368). Compare to simple attribute. composite identifier - -In ER modeling, a key composed of more than one attribute. derived attribute - -An attribute that does not physically exist within the entity and is derived via an algorithm. For example, the Age attribute might be derived by subtracting the birth date from the current date. existence-dependent - -A property of an entity whose existence depends on one or more other entities. In such an environment, the existence-independent table must be created and loaded first because the existence-dependent key cannot reference a table that does not yet exist. existence-independent - -A property of an entity that can exist apart from one or more related entities. Such a table must be created first when referencing an existence-dependent table. identifiers - -One or more attributes that uniquely identify each entity instance. iterative process - -A process based on repetition of steps and
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