'Schema refinement' diaporamas de présentation

CSE544 Data Modeling, Conceptual Design, XML

CSE544 Data Modeling, Conceptual Design, XML. Wednesday, April 5, 2006. Outline. ER diagrams (Chapter 2) Conceptual Design (Chapter 19) XML (Web). Database Design. Data Modeling. SQL Tables. Refinement. Files. E/R diagrams. Relations. name. buys. Person. Product. price. name.

1.02k views • 78 slides

CSE544 Data Modeling, Conceptual Design

CSE544 Data Modeling, Conceptual Design. Wednesday, April 7, 2004. Outline. ER diagrams (Chapter 2) Conceptual Design (Chapter 19). Database Design. Data Modeling. SQL Tables. Refinement. Files. E/R diagrams. Relations. name. buys. Person. Product. price. name. ssn.

790 views • 78 slides

Functional Dependencies and Normalization

Functional Dependencies and Normalization. R&G Chapter 19 Lectures 25 & 26. Science is the knowledge of consequences, and dependence of one fact upon another. Thomas Hobbes (1588-1679 ). Administrivia. Homework 5 available by Thursday Final exam 4 weeks from tomorrow.

956 views • 44 slides

NOrmalization

NOrmalization. By: Shiraj Mohamed M | MIS | SEUSL. Normalization. Basically, normalization is the process of structuring the tables in a database for maximum efficiency

577 views • 27 slides

Lecture 1: Introduction to databases

209 views • 20 slides

Lecture 1: Introduction to databases

218 views • 20 slides

CT 5705701 Database Systems and Information Technology

CT 5705701 Database Systems and Information Technology. Course Introduction by Hung-Ming Chen. Conceptual Design of Databases (The E-R Model). Relational Model. Table (Relation, Relational Schema). Schema # 1. Schema # 2. : Entity. : Relationship. : attribute.

217 views • 13 slides