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Design Normalization

1. FUNCTIONAL DEPENDENCIES 2. Definition • Let R be the relation, and let x and y be the arbitrary subset of the set of attributes of R. Then we say that Y is functionally…

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FUNCTIONAL DEPENDENCIES CSC343 Functional Dependencies Functional Dependencies Examples: PERSON Relation PERSON SIN NAME CITY 123 Laurent Toronto 324 Bill Toronto 574 Bill…

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Query optimization in distributed database systems Framework for query optimization The selection of a query processing strategy involves: ± determining the physical copies…

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Chapter 4 Relational Algebra and Relational Calculus Transparencies © Pearson Education Limited 1995, 2005 Chapter 4 - Objectives Meaning of How How How the term relational…

Technology CS 542 -- Concurrency Control, Distributed Commit

1. CS 542 Database Management SystemsConcurrency ControlCommit in Distributed SystemsJ Singh April 11, 2011 2. Today’s MeetingConcurrency ControlIntention LocksIndex LockingOptimistic…

Technology Aljabar

1. Relational Algebra Edited by Aryati Bakri 2. Objectives Meaning of the term relational completeness. How to form queries in relational algebra. Categories of relational…

Education Relational Algebra-Database Systems

1. Chapter 4 Relational AlgebraPearson Education © 2009 2. Chapter 5 - Objectives Meaning of the term relational completeness. How to form queries in relational algebra.…

Education Relational algebra-and-relational-calculus

1. Chapter 4 Relational Algebra and Relational Calculus Transparencies 2. Relational Algebra Relational algebra and relational calculus are formal languages associated with…

Documents 1 Relational Algebra Part II Hugh Darwen [email protected] hugh CS252.HACD: Fundamentals of...

Slide 11 Relational Algebra Part II Hugh Darwen [email protected] www.dcs.warwick.ac.uk/~hugh CS252.HACD: Fundamentals of Relational Databases Section 5: Relational…

Documents 1 Lecture 7 Design Theory for Relational Databases (part 1) Slides based on...

Slide 11 Lecture 7 Design Theory for Relational Databases (part 1) Slides based on http://infolab.stanford.edu/~ullman/fcdb/aut07/index.html#lecturehttp://infolab.stanford.edu/~ullman/fcdb/aut07/index.html#lecture…