Relationship attributes - PowerPoint PPT Presentation

Functional Dependencies

Functional Dependencies. Informal Design Guidelines for Relational Databases (1). What is relational database design? The grouping of attributes to form &quot;good&quot; relation schemas Two levels of relation schemas The logical &quot;user view&quot; level The storage &quot;base relation&quot; level

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Basic Schema Generation

Basic Schema Generation. Generate a schema for each entity set The attributes are the attributes of the entity set. The keys are the candidate keys of the entity set; choose a primary key. For each relationship set, adjust or add a schema.

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200 views • 6 slides

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