'Entity type' presentation slideshows

Enhanced E-R Model and Business Rules

Enhanced E-R Model and Business Rules. CS263 Lecture 4. Introduction. The basic ER model was introduced in the mid 1970s Since then business relationships and business data have become more complex

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ITS232 Introduction To Database Management Systems

ITS232 Introduction To Database Management Systems . Siti Nurbaya Ismail Faculty of Computer Science & Mathematics, Universiti Teknologi MARA ( UiTM ), Kedah | sitinurbaya@kedah.uitm.edu.my | http://www.sitinur151.wordpress.com | | A2-3039 | ext:2561 | 019-5710562 |. CHAPTER 4

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Database Systems

751 views • 58 slides

Exercises

Exercises. Apa beda database schema dan database state ? Apa beda logical data independence dan physical data independence ? Apakah perbedaan two-tier & three-tier architecture ? Data model merupakan representasi pisik (physical representation) dari struktur basisdata. [T/F]

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Chapter 4: Enhanced Entity-Relationship (EER) Modeling

Chapter 4: Enhanced Entity-Relationship (EER) Modeling. Data Modeling and Database Design. Remember!. Presentation Layer ER Diagram ? C ontains hashes and oval Design-specific ER Diagram (Coarse-granularity) ? Uses (min, max) notation ? Maps deletion rules

719 views • 43 slides

Database Administration: The Complete Guide to Practices and Procedures

Database Administration: The Complete Guide to Practices and Procedures. Chapter 3 Data Modeling & Normalization. Agenda. Data Modeling Concepts The Components of a Data Model Discovering Entities, Attributes & Relationships Conceptual, Logical & Physical Data Models Normalization

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Database Design I: The Entity-Relationship Model

Database Design I: The Entity-Relationship Model. Chapter 5. Database Design. Goal: specification of database schema Methodology: Use E-R model to get a high-level graphical view of essential components of enterprise and how they are related Convert E-R diagram to DDL

547 views • 40 slides

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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Data Modeling Using the Entity-Relationship Model

Data Modeling Using the Entity-Relationship Model. Using High-Level Conceptual Data Models for Database Design. Functional Requirements. Data Requirements. CONCEPTUAL DESIGN. FUNCTIONAL ANALYSIS. Conceptual Schema (in a high-level data model). High-level Transaction Specification.

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Chapter 4

Chapter 4. The Enhanced ER Model and Business Rules. Objectives. Use of supertype/subtype relationships Use of generalization and specialization techniques Specification of completeness and disjointness constraints Develop supertype/subtype hierarchies for realistic business situations

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The Enhanced Entity Relationship Diagrams (E-ERDs)

The Enhanced Entity Relationship Diagrams (E-ERDs). Supertypes and Subtypes. Subtype: A subgrouping of the entities in an entity type that has attributes distinct from those in other subgroupings Supertype: A generic entity type that has a relationship with one or more subtypes

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logical design for relational database

DATABASE DESIGN & DEVELOPMENT. logical design for relational database. Zatil Ridh'wah Hj Darot. Logical data modeling Motivation for logical data modeling Mapping ERD to logical design Data elements Entity relationship modeling Referential integrity. Logical design. Logical data modeling.

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Developing Database Specifications

TRACK 3. Developing Database Specifications. Learning Objectives. At the end of the session, the participants should be able to Identify the information requirements of the organisation, resource centre/department, end-user. Identify areas wherein database can address the requirements.

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ER Modeling Case Studies

ER Modeling Case Studies. BanksDatabase :ER Case Study. Consider the following set of requirements for a Bank database that is used to keep track of Customer. Each bank has a unique name. Each branch has a number, name, address (number, street, city), and set of phones.

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Data Modeling Basics

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Chapter (9) ER and EER-to-Relational Mapping, and other Relational Languages Objectives

Chapter (9) ER and EER-to-Relational Mapping, and other Relational Languages Objectives How a relational database schema can be created from a conceptual schema developed using the ER models.

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Entity Relationship Diagrams

Entity Relationship Diagrams. Basic Elements and Rules. Introduction to Entity-Relationship (E-R) Modeling. Notation uses three main constructs Data entities Relationships Attributes Entity-Relationship (E-R) Diagram

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Database Fundamentals

Database Fundamentals. The Data Model. Microsoft Enterprise Consortium: http://enterprise.waltoncollege.uark.edu Microsoft Faculty Connection/Faculty Resource Center http://www.facultyresourcecenter.com. Model notation.

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5 GUIDING PRINCIPLES

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