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Normalization eliminates modification anomalies - PowerPoint PPT Presentation

Chapter 3 The Relational Model and Normalization

Chapter 3 The Relational Model and Normalization

Chapter 3 The Relational Model and Normalization. CS420 Western Oregon University. Relations. Relational DBMS products store data in the form of relations, a special type of table A relation is a two-dimensional table that has the following characteristics Rows contain data about an entity

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426 views • 28 slides
Chapter 3 The Relational Model and Normalization

Chapter 3 The Relational Model and Normalization

Chapter 3 The Relational Model and Normalization. CS420 Western Oregon University. Relations. Relational DBMS products store data in the form of relations, a special type of table A relation is a two-dimensional table that has the following characteristics Rows contain data about an entity

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285 views • 28 slides
Chapter 6 The Relational Model and Normalization

Chapter 6 The Relational Model and Normalization

Chapter 6 The Relational Model and Normalization. IS420/520 Western Oregon University. Relations. Relational DBMS products store data in the form of relations, a special type of 2D table A relation is a two-dimensional table that has the following characteristics

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409 views • 24 slides
Chapter 4 The Relational Model and Normalization

Chapter 4 The Relational Model and Normalization

Chapter 4 The Relational Model and Normalization. Relations. Relational DBMS products store data in the form of relations, a special type of table A relation is a two-dimensional table that has the following characteristics Rows contain data about an entity

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265 views • 23 slides
Functional Dependencies & Normalization

Functional Dependencies & Normalization

Functional Dependencies & Normalization. Souhad M. Daraghma. Redundancy and Normalisation. Redundant Data Can be determined from other data in the database Leads to various problems INSERT anomalies UPDATE anomalies DELETE anomalies. Redundancy and Normalisation. Normalisation

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299 views • 17 slides
More about Functional Dependencies and Normalization

More about Functional Dependencies and Normalization

More about Functional Dependencies and Normalization. Functional Dependencies. A functional dependency occurs when the value of one (set of) attribute(s) determines the value of a second (set of) attribute(s)

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226 views • 11 slides

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