Relational Database Concepts IBM Information Management Cloud Computing Center of Competence IBM Canada Labs 1 © 2011 IBM Corporation Agenda • Overview • Information and Data Models • The relational model • Entity-Relationship diagrams • Types of relationships • Mapping entities to tables • Relational model concepts • Relational model constraints • Normalization 2 © 2011 IBM Corporation Supporting reading material & videos • Reading materials • Database Fundamentals eBook • •
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A. Lab # : BSBA BIS245A-1 B. Lab 1 of 7 : Introduction to MS Visio and MS Access C. Lab Overview--Scenario/Summary TCOs: 1. Given a business situation in which managers require information from a database‚ determine‚ analyze and classify that information so that reports can be designed to meet the requirements. 2. Given a situation containing entities‚ business rules‚ and data requirements‚ create the conceptual model of the database using a database modeling tool. Scenario: You have been asked to
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Civil Service College Module 5: Project Management‚ Exercise on DPP/TPP Prepared by: Group-……………………………….. Sl Name Designation 1 MM Tariqul Islam GPP-17 2 Md. Anowarul Islam GPP-03 3 Rownak Tahmina GPP-05 4 Zahirul Islam GPP-24 5 Muktadir Aziz Gpp-18 6 Prepared For: [The answer should be on the basis of the DPP/TPP provided by the course authority for this purpose] 1. General Information:4 a Name of the Project: Strengthening BPSC’s Organizational Structure
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Designing Databases: Building a Conceptual Data Model [1] Fundamentals of Databases Alvaro A A Fernandes School of Computer Science University of Manchester Acknowledgements 2 These slides are minor adaptaAons of material authored and made available to instructors by Ramez Elmasri
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The Evolution of Data Models The quest for better data management has led to different models that attempt to resolve the file system’s critical shortcomings. Because each data model evolved from its predecessors‚ it is essential to examine the major data models in roughly chronological order. 1.1 The Hierarchical Model A Hierarchical Database Model is a data model in which the data is organized into a tree-like structure. The structure allows representing information using parent/child relationships:
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Chapter 1 Solutions Review Questions 1. What is the purpose of an E-R Model? To identify the entities about which the database should store data‚ and the relationship among those entities. 2. What is an entity? An entity is any person‚ place‚ or thing having attributes‚ or characteristics‚ of interest to the organization. 3. Give an example of three entities that might exist in a database for a medical office and some of the attributes that would be stored in a table for each entity. Doctor
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SAI430—iLab Week 1: The Database Programming Environment TCOs Satisfied 1 Given a set of guidelines and tools‚ explore how project work and development can be enhanced and improved with proper structure and formality. 5 Given a business system application that needs to retrieve from and write to a relational database using an external sequential or CSV data file format‚ the student will design‚ code‚ and document the business application using a high-level language. Introduction and Rationale During
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Rethinking Rocky Mountain Outfitters Chapter 13 Questions Update the RMO relational database design in Figure 13-9 based on the changes that you made to the ERD. Be sure that all your database tables are in 3NF. Write ODL schema specifications for all new classes and relationships that you added to the class diagram. Verify that the new classes and relationships are accurately represented in the updated relational database design that you developed for question 1. Answers Professor‚ I
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represent cardinality and participation constraints‚ the place where they specify constraints‚ or they portray overlapping and split subclass entity-types‚ or they show total or partial narrowing down‚ and whether they model the foreign key at the ERD level. Bachman Notation also known as data structure diagram is used to design the data with a network or relational logical model. It divides the data from model. This is how the data is stored in the system. Barker’s Notation signifies the properties
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OFFICE OF THE EXECUTIVE DIRECTOR Dear Reader: For the past 30 years‚ PCARRD has steadfastly provided the directions in developing and modernizing the agriculture‚ forestry‚ and natural resources sectors to meet the country’s ever-challenging demands for food security‚ economic growth‚ and sustainable development. In order to keep a top-caliber research system‚ PCARRD has streamlined its R&D efforts by pursuing important commodities on crops‚ livestock‚ agricultural resource management‚ forestry
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