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APA
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IT & Computer Science
Type:
Case Study
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English (U.S.)
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Topic:
Nonidentifying and Identifying Relationships Within Databases
Case Study Instructions:
Nonidentifying relationships are common within databases. Explain how nonidentifying relationships differ from identifying relationships. Provide three real-world examples of nonidentifying relationships that could occur within a database.
APA style
two References from reliable sources
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Non-identifying Relationships
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Database layouts are closely related to database relationships, the association between two columns in one or more tables. Relationships are defined based on matching key columns. A non-identifying is a relationship between strong entity types. Each entity type has a specific key, and each entity has an attribute that uniquely identifies it and distinguishes it from others in the corresponding entity or set. This occurs as the parent entity’s primary key attributes are included in that of the child entity without becoming the primary key of the child entity (Burbank & Hoberman, 2020). A non-identifying relationship can be optional and mandatory. On the other hand, an identifying relationship is where the parent entity’s primary key attributes are include...
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