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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 "good" relation schemas Two levels of relation schemas The logical "user view" level The storage "base relation" 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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Relationship attributes - PowerPoint PPT Presentation

Functional Dependencies

Basic Schema Generation