'Entity set' presentation slideshows

Managing external data Part 1 Design of Databases

Managing external data Part 1 Design of Databases. Gitte Christensen Dyalog Ltd. Purpose. To give you a crash course in data analysis and databases After part 1 Design of Databases you will be able to analyse and organise data based on a requirement spec or use case.

1.32k views • 119 slides

Chapter 7: Entity-Relationship Model

Chapter 7: Entity-Relationship Model. Chapter 7: Entity-Relationship Model. Design Process Modeling Constraints E-R Diagram Design Issues Weak Entity Sets Extended E-R Features Design of the Bank Database Reduction to Relation Schemas Database Design UML. Modeling.

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E-R Model

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Conceptual Design Using the Entity-Relationship (ER) Model

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DATABASE MANAGEMENT SYSTEMS TERM 2010-11 B. Tech IV/EEE II Semester UNIT-II PPT SLIDES

DATABASE MANAGEMENT SYSTEMS TERM 2010-11 B. Tech IV/EEE II Semester UNIT-II PPT SLIDES Text Books: (1) DBMS by Raghu Ramakrishnan (2) DBMS by Sudarshan and Korth. INDEX UNIT-2 PPT SLIDES S.NO Module as per Lecture PPT

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DATABASE MANAGEMENT SYSTEMS

DATABASE MANAGEMENT SYSTEMS. INDEX UNIT-2 PPT SLIDES S.NO Module as per Lecture PPT Session planner No Slide NO ------------------------------------------------------------------------------------------

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The Entity-Relationship (E-R) Model

The Entity-Relationship (E-R) Model. Lecture Topics Basic E-R modelling Extensions to E-R modelling Designing an E-R schema Deriving relational schema from E-R diagrams Textbook Chapter 2 Section 3.5. Overview of E-R model. used for database (conceptual schema) design

605 views • 47 slides

History of Database Systems

History of Database Systems. 1950s and early 1960s: Data processing using magnetic tapes for storage Tapes provide only sequential access Punched cards for input Late 1960s and 1970s: Hard disks allow direct access to data Network and hierarchical data models in widespread use

2.91k views • 47 slides

The Entity-Relationship Model

The Entity-Relationship Model. IS698 Min Song. Overview of Database Design. Conceptual design : ( ER Model is used at this stage.) What are the entities and relationships in the enterprise? What information about these entities and relationships should we store in the database?

614 views • 44 slides

The Entity-Relationship Model (Chapter 2)

The Entity-Relationship Model (Chapter 2). 1. Main Phases of Database Design. 2. Overview of Database Design. Conceptual design : ( ER Model is used at this stage.) What are the entities and relationships in the enterprise?

546 views • 43 slides

The Entity-Relationship Model

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Wat gaan wij leren?

Wat gaan wij leren?. Data Bases Data modelleren Hoe kan ik zien wat voor informatiesysteem er nodig is? Hoe maak ik een formeel model van een complex systeem op basis van de tekstuele beschrijving van het systeem? Hoe vertaal ik het model naar de tabelstructuur van de database? Queries

514 views • 33 slides

CS411 Database Systems

CS411 Database Systems. Kazuhiro Minami. 03: The Relational Model. Announcements. Project stage 0 is due today Grade distribution of the course project Stage 1 (Decide your application): 5% Stage 2 (ER modeling) : 5% Stage 3 (Relational schema design): 10%

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System Concepts and Architecture

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The Entity-Relationship Model

358 views • 27 slides

A Demo of Logical Database Design

A Demo of Logical Database Design. Aim of the demo. To develop an understanding of the logical view of data and the importance of the relational model To consider entities, attributes, and tables within the relational view Learn basic and advanced ER modelling techniques.

439 views • 23 slides

Entity-Relationship and Enhanced Entity-Relationship Conceptual Data Models (Chapters 6 & Section 7.1)

Entity-Relationship and Enhanced Entity-Relationship Conceptual Data Models (Chapters 6 & Section 7.1). E-R MODEL. E-R model is based on a real world that consists of entities and relationships. It consists of two primitives:

440 views • 23 slides

The Entity-Relationship Model

The Entity-Relationship Model. Chapter 2. name. ssn. lot. Employees. ER Model Basics. Entity : Real-world object distinguishable from other objects. An entity is described (in DB) using a set of attributes . Entity Set : A collection of similar entities. E.g., all employees.

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Fig 3.12 Relation Movie with new attributes representing the owning information

Fig 3.12 Relation Movie with new attributes representing the owning information Fig 3.13 The relation Movie with star information. 3.3 From E/R Diagram to Relational Design

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Entity Relationship Model

Entity Relationship Model. Introduction:- The E-R model was introduced by P.P. Chen not only E-R model but also corresponding diagramming techniques. In a database management system (DBMS), a group of similar information or data, which is of interest to an organization is called an entity.

716 views • 11 slides