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Chapter 4: The Enhanced ER Model and Business Rules

Chapter 4: The Enhanced ER Model and Business Rules

Modern Database Management 8th Edition Jeffrey A. Hoffer , Mary B. Prescott, Fred R. McFadden. Chapter 4: The Enhanced ER Model and Business Rules. By: Aatif Kamal Dated: March 2008. Objectives. Definition of terms Use of supertype /subtype relationships

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884 views • 59 slides
ITEC 3220M Using and Designing Database Systems

ITEC 3220M Using and Designing Database Systems

ITEC 3220M Using and Designing Database Systems. Instructor: Prof. Z. Yang Course Website: http://people.yorku.ca/~zyang/itec3220m.htm Office: Tel 3049. Supertypes and Subtypes. Generalization hierarchy: depicts relationships between higher-level supertype and lower-level subtype entities

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590 views • 58 slides
ITEC 3220A Using and Designing Database Systems

ITEC 3220A Using and Designing Database Systems

ITEC 3220A Using and Designing Database Systems. Instructor: Gordon Turpin Course Website: www.cse.yorku.ca/~gordon/itec3220S07 Office: CSEB3020. Supertypes and Subtypes. Generalization hierarchy: depicts relationships between higher-level supertype and lower-level subtype entities

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616 views • 50 slides
Chapter 4: The Enhanced ER Model and Business Rules

Chapter 4: The Enhanced ER Model and Business Rules

Chapter 4: The Enhanced ER Model and Business Rules. Modern Database Management 8 th Edition. Objectives. Definition of terms Use of supertype/subtype relationships Use of generalization and specialization techniques Specification of completeness and disjointness constraints

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442 views • 35 slides
Chapter 4: The Enhanced ER Model and Business Rules

Chapter 4: The Enhanced ER Model and Business Rules

Chapter 4: The Enhanced ER Model and Business Rules. Modern Database Management Jeffrey A. Hoffer, Mary B. Prescott, Fred R. McFadden. Objectives. Definition of terms Use of supertype/subtype relationships Use of generalization and specialization techniques

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394 views • 30 slides
The Enhanced E-R Model

The Enhanced E-R Model

The Enhanced E-R Model. Objectives. Define terms Understand use of supertype/subtype relationships Understand use of specialization and generalization techniques Specify completeness and disjointness constraints Develop supertype/subtype hierarchies for realistic business situations

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312 views • 29 slides

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