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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…

Documents Dr. A.I. Cristea acristea/ CS 319: Theory of Databases: FDs.

Slide 1Dr. A.I. Cristea http://www.dcs.warwick.ac.uk/~acristea/ CS 319: Theory of Databases: FDs Slide 2 2 … previous Generalities on Databases Slide 3 3 … previous Generalities…

Documents Dr. A.I. Cristea acristea/ CS 319: Theory of Databases: C2.

Slide 1Dr. A.I. Cristea http://www.dcs.warwick.ac.uk/~acristea/ CS 319: Theory of Databases: C2 Slide 2 Organisational Office hours 11:00-12:00, Wednesdays 17:00-18:00, Thursdays…

Documents Functional Dependencies- Examples. Exercise #1: FD’s From DB Instances Below is an instance of R(A...

Slide 1Functional Dependencies- Examples Slide 2 Exercise #1: FD’s From DB Instances Below is an instance of R(A 1,A 2,A 3,A 4 ). Choose the FD which may hold on R 1. A…

Documents Souhad M. Daraghma Functional Dependencies- Examples.

Slide 1Souhad M. Daraghma Functional Dependencies- Examples Slide 2 Exercise #1: FD’s From DB Instances Below is an instance of R(A1,A2,A3,A4). Choose the FD which may…

Documents 4NF and 5NF Prof. Sin-Min Lee Department of Computer Science.

Slide 1 4NF and 5NF Prof. Sin-Min Lee Department of Computer Science Slide 2 Schedule Today: Jan. 15 (T) –Normal Forms, Multivalued Dependencies. –Read Sections 3.6-3.7.…

Documents 1 Design Theory for Relational Databases Functional Dependencies Decompositions Normal Forms.

Slide 1 1 Design Theory for Relational Databases Functional Dependencies Decompositions Normal Forms Slide 2 2 Functional Dependencies uX ->Y is an assertion about a relation…

Documents 1 Loss-Less Joins. 2 Decompositions uDependency-preservation property: enforce constraints on...

Slide 1 1 Loss-Less Joins Slide 2 2 Decompositions uDependency-preservation property: enforce constraints on original relation by enforcing some constraints on resulting…

Documents Database Systems Lecture #5 Yan Pan School of Software, SYSU 2011.

Slide 1 Slide 2 Database Systems Lecture #5 Yan Pan School of Software, SYSU 2011 Slide 3 2 Agenda Last time: FDs This time: 1. Anomalies 2. Normalization: BCNF & 3NF…

Documents 1 Functional Dependencies Meaning of FD’s Keys and Superkeys Inferring FD’s.

Slide 1 1 Functional Dependencies Meaning of FD’s Keys and Superkeys Inferring FD’s Slide 2 2 Functional Dependencies uX -> A is an assertion about a relation R that…