'Er model' diaporamas de présentation

COP5725 Advanced Database Systems

COP5725 Advanced Database Systems. DB Fundamentals. Spring 2014. What are Database Management Systems. DBMS is a system for providing EFFICIENT , CONVENIENT , and SAFE MULTI-USER storage of and access to MASSIVE amounts of PERSISTENT data. Example: Banking System. Data

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Model-independent schema and data translation

Model-independent schema and data translation. Paolo Atzeni Based on work done with L. Bellomarini , P. Bernstein, F. Bugiotti , P. Cappellari , G. Gianforme , L. Rossi, R. Torlone Haifa - November 2011. Outline. The problem The metamodel and the " supermodel "

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????? 5. ????????????????????? ????? ??. ?. ??. ???? ????????. CS (204)321 ????????????? 1 (Database System I). Outlines. 1) Database design process 2) ER Model concepts 3) ER diagrams notation 4) Relationships and relationship types 5) Degree of relationship types

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Chapter 3 Data Modeling Using the Entity-Relationship (ER) Model

Chapter 3 Data Modeling Using the Entity-Relationship (ER) Model. Dr. Bernard Chen Ph.D. University of Central Arkansas. Outline. Overview of the database design An Example Database Application Entity Types, Entity Sets, Attributes, and keys Relationship. Database Design.

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Database Applications (15-415) The Relational Model Lecture 3, January 14, 2018

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Entity-Relationship Model

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Chapter 11

Chapter 11. Entity-Relationship modeling Transparencies. Chapter 11 - Objectives. The use of high-level conceptual data models to support database design. The basic concepts associated with the Entity-Relationship (ER) model, a high-level conceptual data model.

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IMS1002 /CSE1205 Systems Analysis and Design

IMS1002 /CSE1205 Systems Analysis and Design. Introduction to Data Modelling: Entity Relationship Modelling. Data Modelling. Focus on the information aspects of the organisation In a database environment many applications share the same data

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Relational Database Design by ER-to-Relational Mapping

Relational Database Design by ER-to-Relational Mapping. Outline. Review Relational model ER model ER diagram Database design steps ER-to-Relational Mapping Algorithm Enhanced ER (EER and mapping). Relational Model Concepts.

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Database Management system

CS 222. Lecture 4. Database Management system. Somchai Thangsathityangkul. University Teaching Database. Design an E-R schema for a database to store info about professors, courses and course sections indicating the following: The name and employee ID number of each professor

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Pseudo-Likelihood for Relational Data

Pseudo-Likelihood for Relational Data. Oliver Schulte School of Computing Science Simon Fraser University Vancouver, Canada To appear at SIAM SDM conference on data mining. The Main Topic. In relational data, units are interdependent no product likelihood function for model.

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Chapter 8 The Enhanced Entity-Relationship (EER) Model

Chapter 8 The Enhanced Entity-Relationship (EER) Model. Chapter 8 Outline. Subclasses, Superclasses, and Inheritance Specialization and Generalization Constraints and Characteristics of Specialization and Generalization Hierarchies Modeling of UNION Types Using Categories.

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Database Systems I Week 2 The Entity-Relationship Model

Database Systems I Week 2 The Entity-Relationship Model. Syllabus. Class Time and Location : Tue 14:30-16:20 AQ3005 Thu 14:30-15:20 AQ3003 Course Website: http ://www.cs.sfu.ca/CC/354/rfrank / Instructor : Richard Frank, PhD Email: rfrank@sfu.ca Office Hours Location: TASC 9205

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Database Systems 02 Conceptual Design

Database Systems 02 Conceptual Design. Last update: Mar 11, 2019. Announcements/Org. Feedback so far #1 Video Recording (5): Record and upload lectures (English, repetition, flexibility, room) ? Expected start: Mar 18 #2 Questions (1): Repeat questions for everybody in the room

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Modeling Your Data

Modeling Your Data. Chapter 2. Overview of Database Design. Conceptual design : What are the entities and relationships in the enterprise? What information about these entities and relationships should we store in the database?

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CSE 1012 Basic Computer Applications Entity-relationship diagram

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Chapter 12

Chapter 12. Enhanced Entity-Relationship Modeling Transparencies. Chapter 12 - Objectives. Limitations of basic concepts of the ER model and requirements to represent more complex applications using additional data modeling concepts.

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Component 4/Unit 6b Topic II Relational Databases

Component 4/Unit 6b Topic II Relational Databases. Keys and relationships Data modeling Database acquisition Database Management System (DBMS) Database development. Connecting Data. Candidate keys Primary key Natural key Surrogate key Foreign key Relationship.

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Database Design

Database Design. Security Design. miniworld. Requirements & collection analysis. refinement. Database Requirements. Conceptual Design. Conceptual Schema (in a high-level data model). DBMS independent. Data Model Mapping. DBMS specific. Conceptual Schema (in the model of a specific DBMS).

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