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Schema Refinement and Normal Forms

Schema Refinement and Normal Forms

Schema Refinement and Normal Forms. Review: Database Design. Requirements Analysis user needs; what must database do? Conceptual Design high level description (often done w/ER model) Logical Design translate ER into DBMS data model Schema Refinement consistency, normalization

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1.78k views • 134 slides
Schema Refinement and Normal Forms

Schema Refinement and Normal Forms

Schema Refinement and Normal Forms. Review: Database Design. Requirements Analysis user needs; what must database do? Conceptual Design high level description (often done w/ER model) Logical Design translate ER into DBMS data model Schema Refinement consistency, normalization

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1.76k views • 134 slides
Module 6

Module 6

Module 6. Relational Database Design. Topics to be covered. Pitfalls in relational database design Functional dependencies Armstrong Axioms Decomposition Desirable properties of decomposition Boyce-code normal form 3 rd and 4 th normal form Mention of other normal forms.

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1.04k views • 90 slides
Module 6

Module 6

Module 6. Relational Database Design. Topics to be covered. Pitfalls in relational database design Functional dependencies Armstrong Axioms Decomposition Desirable properties of decomposition Boyce-code normal form 3 rd and 4 th normal form Mention of other normal forms.

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1.15k views • 90 slides
CHAPTER 14 Basics of Functional Dependencies and Normalization for Relational Databases

CHAPTER 14 Basics of Functional Dependencies and Normalization for Relational Databases

CHAPTER 14 Basics of Functional Dependencies and Normalization for Relational Databases. Chapter Outline. 1 Informal Design Guidelines for Relational Databases 1.1 Semantics of the Relation Attributes 1.2 Redundant Information in Tuples and Update Anomalies 1.3 Null Values in Tuples

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726 views • 61 slides
Topic 10 Functional Dependencies and Normalization for Relational Databases

Topic 10 Functional Dependencies and Normalization for Relational Databases

Topic 10 Functional Dependencies and Normalization for Relational Databases. Faculty of Information Science and Technology Mahanakorn University of Technology. Topic Outline. 1 Informal Design Guidelines for Relational Databases 1.1Semantics of the Relation Attributes

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669 views • 55 slides
Basics of Functional Dependencies and Normalization for Relational Databases

Basics of Functional Dependencies and Normalization for Relational Databases

Basics of Functional Dependencies and Normalization for Relational Databases. Chapter Outline. 1 Informal Design Guidelines for Relational Databases 1.1 Semantics of the Relation Attributes 1.2 Redundant Information in Tuples and Update Anomalies 1.3 Null Values in Tuples

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701 views • 55 slides
Functional Dependency and Normalization

Functional Dependency and Normalization

Functional Dependency and Normalization. Informal design guidelines for relation schemas. Functional dependencies. Normal forms. Normalization. Informal Design Guidelines. Semantics of relations and attributes.

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576 views • 34 slides
Functional Dependency and Normalization

Functional Dependency and Normalization

Functional Dependency and Normalization. Informal design guidelines for relation schemas. Functional dependencies. Normal forms. Normalization. Informal Design Guidelines. Semantics of relations and attributes.

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377 views • 34 slides
Chapter 15

Chapter 15

Chapter 15. Basics of Functional Dependencies. Lecture # 13 July 19 ,2012. Mid Term Exam Solution Discussion. Chapter 15 Outline. Informal Design Guidelines for Relation Schemas Functional Dependencies Normal Forms Based on Primary Keys

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244 views • 13 slides

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