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Chapter 7 Data Modeling Using the Entity-Relationship (ER) Model

Chapter 7 Data Modeling Using the Entity-Relationship (ER) Model

Chapter 7 Data Modeling Using the Entity-Relationship (ER) Model. Entity Relationship Model (ER). ER model was proposed by Peter Chen in 1976 ER model has become the standard tool for conceptual schema design

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817 views • 64 slides
Indexing ( 1)

Indexing ( 1)

Indexing ( 1). Xiang Lian Department of Computer Science Kent State University Email: xlian@kent.edu Homepage: http ://www.cs.kent.edu/~xlian/. Objectives. In this chapter, you will: Get familiar with many indexing mechanisms: B + -tree, extensible hashing, bitmap Grid file

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586 views • 58 slides
Data Modeling Using the Entity-Relationship (ER) Model

Data Modeling Using the Entity-Relationship (ER) Model

Data Modeling Using the Entity-Relationship (ER) Model. Entity Relationship Modeling. Objectives: To illustrate how relationships between entities are defined and refined. To know how relationships are incorporated into the database design process.

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669 views • 37 slides
Chapter 3:

Chapter 3:

Chapter 3:. Data Modeling Using the Entity-Relationship (ER) Model. Outline. Example Database Application (COMPANY) ER Model Concepts Entities and Attributes Entity Types, Value Sets, and Key Attributes Relationships and Relationship Types Weak Entity Types

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536 views • 35 slides
Introduction to Database Systems

Introduction to Database Systems

Introduction to Database Systems. Purpose of Database Systems Views of Data Data Models Data Definition Language Data Manipulation Language Transaction Management Storage Management Database Administrator Database Users Overall System Structure. Database Management System (DBMS).

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335 views • 18 slides

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